Trusted by Coursedog ($90M raised), Docplanner (687K daily users), and 40+ tech startups

Product design that converts users and convinces investors

We partner with ambitious founders to transform cluttered, underperforming products into fundable experiences that drive activation and retention. Delivered in weeks, not months.

Trusted by Coursedog ($90M raised), Docplanner (687K daily users), and 40+ tech startups

Product design that converts users and convinces investors

We partner with ambitious founders to transform cluttered, underperforming products into fundable experiences that drive activation and retention. Delivered in weeks, not months.

Trusted by 40+ tech startups that raised $100M+ and serve 600K+ active users

Product design that converts users and convinces investors

We transform cluttered, underperforming products into fundable experiences that convert and retain. Delivered in weeks, not months.

"In 3 weeks, Marty turned my rough idea into an MVP I could confidently demo at conferences and pitch to investors."

I came to him with just a concept for a AI PCBA component analysis tool. He delivered a complete design I could hand off to my dev team. Now we're building it and raising our seed.

I came to him with just a concept for a AI PCBA component analysis tool. He delivered a complete design I could hand off to my dev team. Now we're building it and raising our seed.

Portrait of Tomasz Rola, Founder of ro.lab consulting

Tomasz Rola

Founder
Ro.lab Consulting

Partnered with 40+ startups across AI, Ed-Tech, Healthcare, Consulting and SaaS

Partnered with 40+ startups across AI, Ed-Tech, Healthcare, Consulting and SaaS

  • Logo of Ro.lab Consulting
  • Logo of Phi Health
  • Logo of Brand24
  • Logo of Coursedog
  • Logo of Docplanner
  • Logo of Empik
  • Logo of Prism
  • Logo of Ro.lab Consulting
  • Logo of Phi Health
  • Logo of Brand24
  • Logo of Coursedog
  • Logo of Docplanner
  • Logo of Empik
  • Logo of Prism
  • Logo of Ro.lab Consulting
  • Logo of Phi Health
  • Logo of Brand24
  • Logo of Coursedog
  • Logo of Docplanner
  • Logo of Empik
  • Logo of Prism

AI • Ed-tech

AI • Ed-tech

AI • Ed-tech

Mobile UI design showcasing a language learning app dashboard with lesson list and progress
Mobile UI design showcasing a language learning app dashboard with lesson list and progress
Mobile UI design showcasing a language learning app dashboard with lesson list and progress
Language learning app UI design featuring a flashcard-based lesson experience
Language learning app UI design featuring a flashcard-based lesson experience
Language learning app UI design featuring a flashcard-based lesson experience
UI design for a language learning app focused on character writing practice
UI design for a language learning app focused on character writing practice

AI • Health-tech

AI • Health-tech

AI • Health-tech

Landing Page • Sports

Landing Page • Sports

Landing Page • Sports

Landing page hero UI design for a marathon event featuring bold headline and registration call to action
Landing page hero UI design for a marathon event featuring bold headline and registration call to action
Landing page hero UI design for a marathon event featuring bold headline and registration call to action

Web App • Health-care

Web App • Health-care

Web App • Health-care

Healthcare web application UI design presenting a calendar view for managing patient appointments
Healthcare web application UI design presenting a calendar view for managing patient appointments
Healthcare web application UI design presenting a calendar view for managing patient appointments

The Bottleneck

The Bottleneck

The Bottleneck

Your product has potential. But it's costing you traction.

Your website doesn't convert. Users churn in onboarding. Flows are confusing. Interface looks cluttered. Messaging doesn't land. You've tweaked copy, shipped features. Nothing sticks.

And every investor call ends the same:
polite interest, no follow-up.

Meanwhile, runway's shrinking, competitors are winning deals, and you're burning hours on design instead of closing your next round.

We fix this.

Your product has potential. But it's costing you traction.

Your website doesn't convert. Users churn in onboarding. Flows are confusing. Interface looks cluttered. Messaging doesn't land. You've tweaked copy, shipped features. Nothing sticks.

And every investor call ends the same:
polite interest, no follow-up.

Meanwhile, runway's shrinking, competitors are winning deals, and you're burning hours on design instead of closing your next round.

We fix this.

"Marty at Designfellow was an outstanding designer - taking the business from the early MVP stage to tens of millions of revenue"

Any company would be lucky to work with such a dedicated & strong designer.

Portrait of Justin Wenig, Founder and CEO of Starbridge.ai

Justin Wenig

Founder & CEO
Starbridge.ai

"Marty at Designfellow was an outstanding designer - taking the business from the early MVP stage to tens of millions of revenue"

Any company would be lucky to work with such a dedicated & strong designer.

Portrait of Justin Wenig, Founder and CEO of Starbridge.ai

Justin Wenig

Founder & CEO
Starbridge.ai

"Marty at Designfellow was an outstanding designer - taking the business from the early MVP stage to tens of millions of revenue"

Any company would be lucky to work with such a dedicated & strong designer.

Portrait of Justin Wenig, Founder and CEO of Starbridge.ai

Justin Wenig

Founder & CEO
Starbridge.ai

Results That Matter

Designfellow has helped 40+ companies grow faster

Real startups. Real growth. Real funding.

Results That Matter

Designfellow has helped 40+ companies grow faster

Real startups. Real growth. Real funding.

Results That Matter

Designfellow has helped 40+ companies grow faster

Real startups. Real growth. Real funding.

AI • Ed-tech

AI • Ed-tech

Web application UI design showcasing academic analytics with an AI copilot for reporting and insights
Web app UI design presenting course demand projections and enrollment planning tools for universities
Web application UI design showcasing academic analytics with an AI copilot for reporting and insights
Web app UI design presenting course demand projections and enrollment planning tools for universities
Web application UI design showcasing academic analytics with an AI copilot for reporting and insights
Web app UI design presenting course demand projections and enrollment planning tools for universities
Logo of Coursedog

$17.2M Series A

$17.2M Series A

Logo of Y Combinator
Logo of Y Combinator

From MVP to $90M funding round

From MVP to $90M funding round

We helped Coursedog transform their early MVP into an industry-leading Academic Operations platform. Through a lean approach, end-to-end product design, and continuous research and iteration over 3 years, our work contributed to their growth to 300+ US Education Institutions (including Columbia, Stanford, CUNY, and BYU) serving 2.5M+ students, tens of millions in revenue, and raised $90M from JMI Equity.

"Marty consistently demonstrated ownership and initiative that directly influenced product direction. His ability to balance deep research with practical design execution helped us deliver more intuitive, accessible, and user-centered products across a broad portfolio."

"Marty consistently demonstrated ownership and initiative that directly influenced product direction. His ability to balance deep research with practical design execution helped us deliver more intuitive, accessible, and user-centered products across a broad portfolio."

Portrait of Claire Genre, SVP of Product at Coursedog

Claire Genre

SVP of Product at Coursedog

Serving 300+ US Campuses including Columbia, Stanford, CUNY, and BYU

Optimization • Healthcare

Optimization • Healthcare

Logo of Docplanner

$1B+ valuation

$1B+ valuation

Streamlining healthcare bookings for 687,000 daily users

Streamlining healthcare bookings for 687,000 daily users

We redesigned Docplanner's core patient booking flow – the critical conversion point for the world's largest healthcare platform.
Our high-converting, scalable design now processes 687,000 bookings daily across 13 countries, offloading 260,000 doctors from manual appointment management while ensuring complete patient information reaches providers before every visit.

"Marty designed one of the most important parts of product – the patient booking flow. That flow has been live for years now, which shows how solid and well-thought-out his work was."

"Marty designed one of the most important parts of product – the patient booking flow. That flow has been live for years now, which shows how solid and well-thought-out his work was."

Portrait of Dawid Liberadzki, Principal Product Designer at Docplanner

Dawid Liberadzki

Principal Product Designer at Docplanner

Leading global SaaS healthcare platform

AI • Mobile App

AI • Mobile App

Mobile UI design showcasing an AI-powered language learning app with generated lessons and learning progress
Mobile UI design showcasing a premium upgrade screen in an AI-driven language learning app
Mobile UI design presenting the onboarding flow of an AI language learning app with language selection
Mobile UI design showcasing an AI-powered language learning app with generated lessons and learning progress
Mobile UI design showcasing a premium upgrade screen in an AI-driven language learning app
Mobile UI design presenting the onboarding flow of an AI language learning app with language selection
Mobile UI design showcasing an AI-powered language learning app with generated lessons and learning progress
Mobile UI design showcasing a premium upgrade screen in an AI-driven language learning app
Mobile UI design presenting the onboarding flow of an AI language learning app with language selection

MAIDEN LABS

MAIDEN LABS

MAIDEN LABS

4.8 rating

4.8 rating in App Store

5K+ app downloads

From concept to App Store in 6 weeks

From concept to App Store in 6 weeks

Maiden Labs came to us with an early vision: an AI-powered mobile app to help students learn 4x faster. Working through tight feedback loops with the founder, we designed the complete mobile UX – from onboarding to core learning flows – in just 6 weeks. The founder's team handled development and shipped it to the App Store on schedule, positioning the company to raise their next round with a working product in market.

"Marty at Designfellow is one of the most talented designers I've worked with in the mobile app space. He has an extremely positive attitude and always delivers what is needed at each stage of development."

"Marty at Designfellow is one of the most talented designers I've worked with in the mobile app space. He has an extremely positive attitude and always delivers what is needed at each stage of development."

Portrait of Michael Sun, Founder and CEO of Maiden Labs

Michael Sun

Founder & CEO at Maiden Labs

Mobile & Web apps studio

Why Designfellow

We focus on what brings you results

Your roadmap won't wait. Neither do we. Here's what sets us apart

Why Designfellow

We focus on what brings you results

Your roadmap won't wait. Neither do we. Here's what sets us apart

Why Designfellow

We focus on what brings you results

Your roadmap won't wait. Neither do we. Here's what sets us apart

Investor-Grade Design

Design that wins investor confidence

Design that wins investor confidence

We've designed for companies that raised $100M+ and serve 687K users. Premium quality that closes deals.

Startup-Proven

52 projects, 10 years in startups

MVP to Series A experience across multiple industries. We know what investors expect and what drives growth.

MVP to Series A experience across multiple industries. We know what investors expect and drives growth.

Conversion-Focused

Built to convert and retain users

Every flow optimized for activation and retention. Users sign up, stay active, come back.

Embedded Partner

We own design, you own growth

Full ownership from strategy to dev files. You focus on deals, hiring, and fundraising.

No Lock-In

Pause or cancel anytime

Month-to-month, no contracts. Pause when tight, resume when ready. Total flexibility.

Fast Delivery

Ship in weeks, not months

Landing pages in 1 week, MVPs in 2-6 weeks. Fast enough to beat runway.

How It Works

A proven process that ships fast and fuels growth

Clear steps. Fast execution. Real results.

How It Works

A proven process that ships fast and fuels growth

Clear steps. Fast execution. Real results.

How It Works

A proven process that ships fast and fuels growth

Clear steps. Fast execution. Real results.

We start with a focused call to understand your product vision, target users, biggest challenges, and timeline.

We'll discuss what's not working – whether it's user churn, low conversion, or investor skepticism – and map out the high-impact areas that will move your metrics.

Outcome

By the end, you'll have a clear action plan, defined scope, and know exactly what happens next.

Prefer to skip the call?

Let’s kick off async through email

Within 12 hours, you get access to your dedicated Slack channel, live Figma workspace, and Trello board tracking every task. We start delivering immediately – first design concepts land within 48 hours of kickoff. From there, we share daily updates through Slack and Loom walkthroughs explaining our design decisions. You drop feedback on your schedule, and we iterate continuously until you're completely satisfied.

Timeline by scope

Landing pages usually take 1 week. Core flows take 1-3 weeks. Full MVPs typically land in 2-4 weeks.

Your commitment

1-3 hours per week for reviews. We handle the rest of heavy lifting

You walk away with a product that's ready to convert users and win investors. Every flow is optimized, every detail is polished, and everything is launch-ready with full documentation – so your dev team can build with confidence and ship fast.

What you receive

Dev-ready Figma files with detailed specs, a complete design system built for scalability, AI-compatible style guides for generating on-brand assets, and comprehensive documentation covering flows and implementation.

Before Launch

We review your developer's build and provide QA feedback to ensure design quality is preserved.

After Launch

We're available for iterations based on user feedback and analytics – your product keeps improving as you scale.

We start with a focused call to understand your product vision, target users, biggest challenges, and timeline.

We'll discuss what's not working – whether it's user churn, low conversion, or investor skepticism – and map out the high-impact areas that will move your metrics.

Outcome

By the end, you'll have a clear action plan, defined scope, and know exactly what happens next.

Prefer to skip the call?

Let’s kick off async through email

Within 12 hours, you get access to your dedicated Slack channel, live Figma workspace, and Trello board tracking every task. We start delivering immediately – first design concepts land within 48 hours of kickoff. From there, we share daily updates through Slack and Loom walkthroughs explaining our design decisions. You drop feedback on your schedule, and we iterate continuously until you're completely satisfied.

Timeline by scope

Landing pages usually take 1 week. Core flows take 1-3 weeks. Full MVPs typically land in 2-4 weeks.

Your commitment

1-3 hours per week for reviews. We handle the rest of heavy lifting

You walk away with a product that's ready to convert users and win investors. Every flow is optimized, every detail is polished, and everything is launch-ready with full documentation – so your dev team can build with confidence and ship fast.

What you receive

Dev-ready Figma files with detailed specs, a complete design system built for scalability, AI-compatible style guides for generating on-brand assets, and comprehensive documentation covering flows and implementation.

Before Launch

We review your developer's build and provide QA feedback to ensure design quality is preserved.

After Launch

We're available for iterations based on user feedback and analytics – your product keeps improving as you scale.

We start with a focused call to understand your product vision, target users, biggest challenges, and timeline.

We'll discuss what's not working – whether it's user churn, low conversion, or investor skepticism – and map out the high-impact areas that will move your metrics.

Outcome

By the end, you'll have a clear action plan, defined scope, and know exactly what happens next.

Prefer to skip the call?

Let’s kick off async through email

Within 12 hours, you get access to your dedicated Slack channel, live Figma workspace, and Trello board tracking every task. We start delivering immediately – first design concepts land within 48 hours of kickoff. From there, we share daily updates through Slack and Loom walkthroughs explaining our design decisions. You drop feedback on your schedule, and we iterate continuously until you're completely satisfied.

Timeline by scope

Landing pages usually take 1 week. Core flows take 1-3 weeks. Full MVPs typically land in 2-4 weeks.

Your commitment

1-3 hours per week for reviews. We handle the rest of heavy lifting

You walk away with a product that's ready to convert users and win investors. Every flow is optimized, every detail is polished, and everything is launch-ready with full documentation – so your dev team can build with confidence and ship fast.

What you receive

Dev-ready Figma files with detailed specs, a complete design system built for scalability, AI-compatible style guides for generating on-brand assets, and comprehensive documentation covering flows and implementation.

Before Launch

We review your developer's build and provide QA feedback to ensure design quality is preserved.

After Launch

We're available for iterations based on user feedback and analytics – your product keeps improving as you scale.

App Redesign to increase conversion

"Extremely responsive, always quick to reply, adapt, and move things forward"

Marty at Designfellow designed our app with great attention to detail, delivering a solid and creative design. A pleasure to work with!

Portrait of Marc Allain, Founder of Prism Studio

Marc Allain

Founder at Prism Studio
Mobile apps studio for top creators

App Redesign to increase conversion

"Extremely responsive, always quick to reply, adapt, and move things forward"

Marty at Designfellow designed our app with great attention to detail, delivering a solid and creative design. A pleasure to work with!

Portrait of Marc Allain, Founder of Prism Studio

Marc Allain

Founder at Prism Studio
Top mobile apps studio for creators

App Redesign to increase conversion

"Extremely responsive, always quick to reply, adapt, and move things forward"

Marty at Designfellow designed our app with great attention to detail, delivering a solid and creative design. A pleasure to work with!

Portrait of Marc Allain, Founder of Prism Studio

Marc Allain

Founder at Prism Studio
Mobile apps studio for top creators

Mobile App from 0 to 1 in 6 weeks

"The entire process was smooth backed by great communication"

We worked with Marty at Designfellow on a new language learning project. He was able to meet tight deadlines, not afraid to work late - very admirable trait.

Portrait of Michael Sun, Founder and CEO of Maiden Labs

Michael Sun

Founder & CEO at Maiden Labs
Mobile & Web apps studio

Mobile App from 0 to 1 in 6 weeks

"The entire process was smooth backed by great communication"

We worked with Marty at Designfellow on a new language learning project. He was able to meet tight deadlines, not afraid to work late - very admirable trait.

Portrait of Michael Sun, Founder and CEO of Maiden Labs

Michael Sun

Founder & CEO at Maiden Labs
Mobile & Web apps studio

Mobile App from 0 to 1 in 6 weeks

"The entire process was smooth backed by great communication"

We worked with Marty at Designfellow on a new language learning project. He was able to meet tight deadlines, not afraid to work late - very admirable trait.

Portrait of Michael Sun, Founder and CEO of Maiden Labs

Michael Sun

Founder & CEO at Maiden Labs
Mobile & Web apps studio

Design Showcase

Top-tier design that wins users and investors

Design that drives metrics, not just aesthetics. From onboarding flows to full product suites

Design Showcase

Top-tier design that wins users and investors

Design that drives metrics, not just aesthetics. From onboarding flows to full product suites

Design Showcase

Top-tier design that wins users and investors

Design that drives metrics, not just aesthetics. From onboarding flows to full product suites

AI • Health-tech

AI • Health-tech

AI • Health-tech

Ed-tech

AI • Health-tech

AI • Health-tech

UI components showcasing multiple features of an AI-powered health assistant app, including insights, reminders, and settings
UI components showcasing multiple features of an AI-powered health assistant app, including insights, reminders, and settings
UI components showcasing multiple features of an AI-powered health assistant app, including insights, reminders, and settings

AI • Health-tech

AI • Health-tech

AI • Health-tech

UI design presenting a conversational entry screen for an AI-powered health assistant
UI design presenting a conversational entry screen for an AI-powered health assistant
Mobile UI design showcasing a health timeline with aggregated daily data and AI-generated insights
Mobile UI design showcasing a health timeline with aggregated daily data and AI-generated insights
Mobile UI design showcasing a health timeline with aggregated daily data and AI-generated insights

AI Web App • Consulting

AI Web App • Consulting

AI Web App • Consulting

Web application UI design showcasing CO2 footprint analysis and cost insights across electronic components
Web application UI design showcasing CO2 footprint analysis and cost insights across electronic components
Web application UI design showcasing CO2 footprint analysis and cost insights across electronic components
Web app UI design presenting component-level CO2 and cost analysis on an interactive hardware layout
Web app UI design presenting component-level CO2 and cost analysis on an interactive hardware layout
Web app UI design presenting component-level CO2 and cost analysis on an interactive hardware layout

Landing Page • Sports

Landing Page • Sports

Landing Page • Sports

Consulting

Consulting

Consulting

UI placeholder design illustrating AI-based component recognition for hardware analysis
UI placeholder design illustrating AI-based component recognition for hardware analysis
UI placeholder design illustrating AI-based component recognition for hardware analysis

Landing Page • Ed-tech

Landing Page • Ed-tech

Landing Page • Ed-tech

UI design showcasing visual learning and curated lesson themes in an AI language learning app
UI design showcasing visual learning and curated lesson themes in an AI language learning app
UI design showcasing visual learning and curated lesson themes in an AI language learning app
Landing page UI design highlighting AI-driven photo lessons and faster language learning
Landing page UI design highlighting AI-driven photo lessons and faster language learning
Landing page UI design highlighting AI-driven photo lessons and faster language learning

Landing Page • Ed-tech

Landing Page • Ed-tech

Landing Page • Ed-tech

Landing page UI design presenting an AI language learning app with photo-based lessons
Landing page UI design presenting an AI language learning app with photo-based lessons
Landing page UI design presenting an AI language learning app with photo-based lessons
Hero section UI design for an AI-powered language learning app highlighting practice and repetition
Hero section UI design for an AI-powered language learning app highlighting practice and repetition
Hero section UI design for an AI-powered language learning app highlighting practice and repetition

Your product should look this polished

Your product should look this polished

Your product should look this polished

This is what investor-grade design looks like. We can bring the same quality to your startup - first concepts in 48 hours, launch-ready in 2-6 weeks.

This is what investor-grade design looks like. We can bring the same quality to your startup - first concepts in 48 hours, launch-ready in 2-6 weeks.

This is what investor-grade design looks like. We can bring the same quality to your startup - first concepts in 48 hours, launch-ready in 2-6 weeks.

"Reliable, creative, and easy to collaborate with - a great addition to any product team"

I had the pleasure of working with Marty at Brand24 and can wholeheartedly recommend him. He combines strong visual style with a thoughtful UX/UI approach, delivering designs that are not only aesthetically impressive but also highly effective in real-world implementation.

Portrait of Michal Sadowski, Founder and CEO of Brand24

Michal Sadowski

CEO & Founder at Brand24
#1 AI Social Listening Tool (Part of Semrush Group)

"Reliable, creative, and easy to collaborate with - a great addition to any product team"

I had the pleasure of working with Marty at Brand24 and can wholeheartedly recommend him. He combines strong visual style with a thoughtful UX/UI approach, delivering designs that are not only aesthetically impressive but also highly effective in real-world implementation.

Portrait of Michal Sadowski, Founder and CEO of Brand24

Michal Sadowski

CEO & Founder at Brand24
#1 AI Social Listening Tool

"Reliable, creative, and easy to collaborate with - a great addition to any product team"

I had the pleasure of working with Marty at Brand24 and can wholeheartedly recommend him. He combines strong visual style with a thoughtful UX/UI approach, delivering designs that are not only aesthetically impressive but also highly effective in real-world implementation.

Portrait of Michal Sadowski, Founder and CEO of Brand24

Michal Sadowski

CEO & Founder at Brand24
#1 AI Social Listening Tool

"Marty was exceptionally agile and thorough, consistently distilling complex requirements into meaningful, intuitive designs"

He wasn't just a designer; he was a brilliant collaborator who truly understood our users. In particular, I had the pleasure of partnering with him to design and lead our very first user research initiative for our analytics tool – a testament to his proactive nature and dedication to user-centered design.

Portrait of Mara Koval, VP of Product at Coursedog

Mara Koval

VP of Product at Coursedog
Serving 300+ US Campuses including Stanford, Cornell, and CUNY.

"Marty was exceptionally agile and thorough, consistently distilling complex requirements into meaningful, intuitive designs"

He wasn't just a designer; he was a brilliant collaborator who truly understood our users. In particular, I had the pleasure of partnering with him to design and lead our very first user research initiative for our analytics tool – a testament to his proactive nature and dedication to user-centered design.

Portrait of Mara Koval, VP of Product at Coursedog

Mara Koval

VP of Product at Coursedog
Serving 300+ US Campuses

"Marty was exceptionally agile and thorough, consistently distilling complex requirements into meaningful, intuitive designs"

He wasn't just a designer; he was a brilliant collaborator who truly understood our users. In particular, I had the pleasure of partnering with him to design and lead our very first user research initiative for our analytics tool – a testament to his proactive nature and dedication to user-centered design.

Portrait of Mara Koval, VP of Product at Coursedog

Mara Koval

VP of Product at Coursedog
Serving 300+ US Campuses

FAQ

Frequently Asked Questions

Can't find your answer?

FAQ

Frequently Asked Questions

Can't find your answer?

FAQ

Frequently Asked Questions

Can't find your answer?

Full-time designers cost $120K-180K/year, take months to hire, and might lack startup experience. If they don't work out, you've burned $50K+ before realizing it. Agencies charge $50K-100K+ per project with 3-6 month timelines, bloated processes, and mixed-quality teams (you get juniors doing the work, seniors selling). Freelancers are $5K-15K but inconsistent, need constant project management, and disappear when you need revisions. With Designfellow, you get a senior product designer (10 years, 52 high-impact projects) embedded in your startup, delivering investor-ready quality in 2-6 weeks on average. You're paying for output, not salaries. Pause or cancel anytime. No overhead, no long ramp-up.

You can book an intro call directly in my calendar - most founders grab a slot within 24-48 hours. After our alignment call and securing payment, you get workspace access same-day and first design concepts hit your inbox within 48 hours of kickoff - not weeks later. Timeline depends on scope: • Landing pages usually take 1 week • Core flows take 2 weeks • Full MVPs take 2-6 weeks We move at startup speed, designed to fit your runway, not our convenience.

Me - Marty. You work directly with a senior product designer who's built products for Docplanner (687K daily users), Coursedog ($90M raised), and Brand24 (acquired by Semrush). 10 years in the startup space, 52 projects shipped, experience across ed-tech, healthcare, SaaS, and fintech. No juniors, no outsourcing, no handoffs. You get consistent quality, clear communication, and someone who understands startup constraints: limited runway, tight timelines, needing to impress investors while keeping users happy.

If it impacts how users sign up, stay, pay, or affects your product metrics - we design it. Full product design: • End-to-end web/mobile apps from scratch • Onboarding flows that convert signups to active users • Core product features and dashboards • User settings, billing flows, checkout experiences Marketing & growth: • High-converting landing pages • Investor pitch decks • Marketing site redesigns Focused improvements: • Single feature redesigns • Fixing specific conversion bottlenecks • Mobile app optimization • Design system creation • Product audits Small requests are fine too. Many founders start with a quick project, see results, then expand into ongoing partnership.

We iterate until you're 100% satisfied - no arbitrary revision limits. The process is built around tight feedback loops and early alignment, so you always have control. If something's off, we course-correct fast. Plus, you can pause or cancel anytime. No long-term contracts, no penalties. If it's not working, you're not locked in.

Simple. After our intro call, you get access to Slack (daily communication), Figma (live design files), and a project board (task tracking). Every time we have new deliverables, we share async updates via Slack explaining what we shipped, design decisions, and next steps. You drop feedback on your schedule, we iterate continuously. Your time commitment: 1-3 hours per week for reviews. No daily standups, no progress meetings eating your calendar. We're async-first because founders don't have time for endless meetings. Tools we use: Slack, Figma, Loom, Trello/Notion. All standard, nothing proprietary to learn. We can also adapt to your stack (Linear, Asana, Discord, whatever you use).

Yes. We often collaborate with founders, developers, designers, and PMs. We adapt to your workflow, discuss all the details, and provide dev-ready deliverables with full documentation, making your team’s lives easier, not harder.

Absolutely. We stay involved during implementation with QA to ensure design quality is preserved. After launch, we provide iteration support based on user feedback and analytics so your product keeps improving as you scale.

Full-time designers cost $120K-180K/year, take months to hire, and might lack startup experience. Agencies charge $50K+ with 3-6 month timelines and bloated processes. Freelancers are hit-or-miss and need constant management. With Designfellow, you get a senior product designer (10 years, 52 projects) embedded in your startup – delivering investor-ready quality in 2-6 weeks. Pause or cancel anytime. No overhead, no long ramp-up.

You can book an intro call directly in my calendar - most founders grab a slot within 24-48 hours. After our alignment call and securing payment, you get workspace access same-day and first design concepts hit your inbox within 48 hours of kickoff - not weeks later. Timeline depends on scope: • Landing pages usually take 1 week • Core flows take 2 weeks • Full MVPs take 2-6 weeks We move at startup speed, designed to fit your runway, not our convenience.

Me - Marty. You work directly with a senior product designer who's built products for Docplanner (687K daily users), Coursedog ($90M raised), and Brand24 (acquired by Semrush). 10 years in the startup space, 52 projects shipped, experience across ed-tech, healthcare, SaaS, and fintech. No juniors, no outsourcing, no handoffs. You get consistent quality, clear communication, and someone who understands startup constraints: limited runway, tight timelines, needing to impress investors while keeping users happy.

If it impacts how users sign up, stay, pay, or affects your product metrics - we design it. Full product design: • End-to-end web/mobile apps from scratch • Onboarding flows that convert signups to active users • Core product features and dashboards • User settings, billing flows, checkout experiences Marketing & growth: • High-converting landing pages • Investor pitch decks • Marketing site redesigns Focused improvements: • Single feature redesigns • Fixing specific conversion bottlenecks • Mobile app optimization • Design system creation • Product audits Small requests are fine too. Many founders start with a quick project, see results, then expand into ongoing partnership.

We iterate until you're 100% satisfied - no arbitrary revision limits. The process is built around tight feedback loops and early alignment, so you always have control. If something's off, we course-correct fast. Plus, you can pause or cancel anytime. No long-term contracts, no penalties. If it's not working, you're not locked in.

Simple. After our intro call, you get access to Slack (daily communication), Figma (live design files), and a project board (task tracking). Every time we have new deliverables, we share async updates via Slack explaining what we shipped, design decisions, and next steps. You drop feedback on your schedule, we iterate continuously. Your time commitment: 1-3 hours per week for reviews. No daily standups, no progress meetings eating your calendar. We're async-first because founders don't have time for endless meetings. Tools we use: Slack, Figma, Loom, Trello/Notion. All standard, nothing proprietary to learn. We can also adapt to your stack (Linear, Asana, Discord, whatever you use).

Yes. We often collaborate with founders, developers, designers, and PMs. We adapt to your workflow, discuss all the details, and provide dev-ready deliverables with full documentation, making your team’s lives easier, not harder.

Absolutely. We stay involved during implementation with QA to ensure design quality is preserved. After launch, we provide iteration support based on user feedback and analytics so your product keeps improving as you scale.

Full-time designers cost $120K-180K/year, take months to hire, and might lack startup experience. If they don't work out, you've burned $50K+ before realizing it. Agencies charge $50K-100K+ per project with 3-6 month timelines, bloated processes, and mixed-quality teams (you get juniors doing the work, seniors selling). Freelancers are $5K-15K but inconsistent, need constant project management, and disappear when you need revisions. With Designfellow, you get a senior product designer (10 years, 52 high-impact projects) embedded in your startup, delivering investor-ready quality in 2-6 weeks on average. You're paying for output, not salaries. Pause or cancel anytime. No overhead, no long ramp-up.

You can book an intro call directly in my calendar - most founders grab a slot within 24-48 hours. After our alignment call and securing payment, you get workspace access same-day and first design concepts hit your inbox within 48 hours of kickoff - not weeks later. Timeline depends on scope: • Landing pages usually take 1 week • Core flows take 2 weeks • Full MVPs take 2-6 weeks We move at startup speed, designed to fit your runway, not our convenience.

Me - Marty. You work directly with a senior product designer who's built products for Docplanner (687K daily users), Coursedog ($90M raised), and Brand24 (acquired by Semrush). 10 years in the startup space, 52 projects shipped, experience across ed-tech, healthcare, SaaS, and fintech. No juniors, no outsourcing, no handoffs. You get consistent quality, clear communication, and someone who understands startup constraints: limited runway, tight timelines, needing to impress investors while keeping users happy.

If it impacts how users sign up, stay, pay, or affects your product metrics - we design it. Full product design: • End-to-end web/mobile apps from scratch • Onboarding flows that convert signups to active users • Core product features and dashboards • User settings, billing flows, checkout experiences Marketing & growth: • High-converting landing pages • Investor pitch decks • Marketing site redesigns Focused improvements: • Single feature redesigns • Fixing specific conversion bottlenecks • Mobile app optimization • Design system creation • Product audits Small requests are fine too. Many founders start with a quick project, see results, then expand into ongoing partnership.

We iterate until you're 100% satisfied - no arbitrary revision limits. The process is built around tight feedback loops and early alignment, so you always have control. If something's off, we course-correct fast. Plus, you can pause or cancel anytime. No long-term contracts, no penalties. If it's not working, you're not locked in.

Simple. After our intro call, you get access to Slack (daily communication), Figma (live design files), and a project board (task tracking). Every time we have new deliverables, we share async updates via Slack explaining what we shipped, design decisions, and next steps. You drop feedback on your schedule, we iterate continuously. Your time commitment: 1-3 hours per week for reviews. No daily standups, no progress meetings eating your calendar. We're async-first because founders don't have time for endless meetings. Tools we use: Slack, Figma, Loom, Trello/Notion. All standard, nothing proprietary to learn. We can also adapt to your stack (Linear, Asana, Discord, whatever you use).

Yes. We often collaborate with founders, developers, designers, and PMs. We adapt to your workflow, discuss all the details, and provide dev-ready deliverables with full documentation, making your team’s lives easier, not harder.

Absolutely. We stay involved during implementation with QA to ensure design quality is preserved. After launch, we provide iteration support based on user feedback and analytics so your product keeps improving as you scale.

Currently booking for Q1 '26

Ready to build a product users want and investors believe in?

Book a free intro call. We'll review your biggest challenges, identify quick wins, and create a plan on how to make your product fundable – whether we work together or not.

30 minutes. We'll review what's broken and how to fix it in 2-6 weeks.

Currently booking for Q1 '26

Ready to build a product users want and investors believe in?

Book a free intro call. We'll review your biggest challenges, identify quick wins, and create a plan on how to make your product fundable – whether we work together or not.

30 minutes. We'll review what's broken and how to fix it in 2-6 weeks.

Currently booking for Q1 '26

Ready to build a product users want and investors believe in?

Book a free intro call. We'll review your biggest challenges, identify quick wins, and create a plan on how to make your product fundable – whether we work together or not.

30 minutes. We'll review what's broken and how to fix it in 2-6 weeks.