← All episodes

I Left College to Build This Niche App (Now I Make $20K/Month)

| 12 products mentioned
Starter Story Starter Story host
Ethan guest
Watch on YouTube niche app development mobile app monetization ai-assisted coding influencer marketing weight management apps combat sports founder story

Ethan, a 19-year-old college dropout, built Cut Coach—a niche mobile app for combat athletes managing weight cuts—and grew it to $20,000/month in revenue within six months using AI-powered development tools and influencer marketing. The episode reveals that hyper-specific problem-solving for passionate, small communities can outperform broad-market apps, with minimal views converting at 10-15% because the solution is uniquely valuable to its users.

Key takeaways
  • • Solve problems within your own hobby or community where you already understand user pain points deeply; Ethan's wrestling background made him credible and gave him direct access to highly intent customers.
  • • Use Cursor and AI tools to eliminate development as a bottleneck, allowing founders to shift focus toward marketing and sales instead of spending months coding; Ethan built his MVP in one month.
  • • Design by reverse-engineering successful competitors in your niche—study their layouts, onboarding, and UX patterns in Figma, then adapt rather than reinvent.
  • • High-intent, niche audiences convert at exceptional rates even with low view counts; Ethan achieved 10-15 downloads per video from posts with only 200-500 views by solving an acute, painful problem.
  • • Transition from organic posts to influencer partnerships with small creators (1K-10K views per video) in your niche community, then repurpose those videos as paid ads for efficient scaling.
  • • Stack backend and monetization tools strategically: use Supabase for databases, Vercel for hosting, OpenAI API for AI features, RevenueCat for subscription management, and Mixpanel/SuperWall for analytics and paywalls.

Recommendations (10)

Cursor
Cursor uses

"I discovered Cursor, and scaled my mobile app to over 5 figures. Around that time, I discovered cursor which made it much easier and faster to build apps"

Ethan · ▶ 1:30

ChatGPT
ChatGPT uses

"I started building the Cut Coach app in June of last year using Cursor and ChatGPT. And I basically just asked ChatGPT, you know, what are some good app ideas"

Ethan · ▶ 4:40

Figma
Figma uses

"And once you have the app idea, I usually just open Figma and start designing the app right away. After I create the design in Figma, I code the app straight away"

Ethan · ▶ 6:45

Supabase
Supabase uses

"I integrate Supabase for the database to store all the data"

Ethan · ▶ 8:03

Vercel
Vercel uses

"I use Vercel to host the landing page and JavaScript files"

Ethan · ▶ 8:06

OpenAI API
OpenAI API uses

"I use OpenAI API for the AI functionality within my app"

Ethan · ▶ 8:11

RevenueCat
RevenueCat uses

"I integrate RevenueCat, Mixpanel, Superwall for paywalls and analytics"

Ethan · ▶ 8:14

Mixpanel
Mixpanel uses

"I integrate RevenueCat, Mixpanel, Superwall for paywalls and analytics"

Ethan · ▶ 8:14

SuperWall
SuperWall uses

"I integrate RevenueCat, Mixpanel, Superwall for paywalls and analytics"

Ethan · ▶ 8:14

TikTok
TikTok uses

"I would basically just scroll on my for you page on TikTok or reels on Instagram and I would DM creators asking them to partner"

Ethan · ▶ 10:04

Mentioned (2)

Cal AI "Like I think about these bigger apps like Cal AI. This is like a very very tiny version of this f..." ▶ 2:22
Duolingo
Duolingo "Let's say you are building a language app and you're copying something that Duolingo did. You kno..." ▶ 7:17

More from these creators

This App Makes $35K/Month With One Influencer

Starter Story · Apr 05, 2026 · 10 recs

My App Made $120K in 24 Hours

Starter Story · Mar 29, 2026 · 7 recs

I Built a $100K/Month Android App

Starter Story · Mar 25, 2026 · 13 recs

I Make $250K/Month From 13 Businesses (After Losing Everything to AI)

Starter Story · Mar 22, 2026 · 3 recs

I Make $17K/Month With One Strategy

Starter Story · Mar 19, 2026 · 8 recs

I Make $60K/Month From the Most Boring SaaS on the Internet

Starter Story · Mar 15, 2026 · 9 recs