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How a student-built app earned $130K/month on Replit
Replit31 August 2026Watch on YouTube
What you'll learn
- How a peptide tracking app was built in about a week with Replit by a student
- How the idea was discovered on TikTok and the first users came from Reddit
- Why marketing matters more than the app itself for the app's success
- That the app earned roughly $130K per month four months after building, climbing toward $1M
- How an AI app with a focused niche can generate revenue quickly without outside investors
Frequently asked questions
Who built the peptide tracking app and within what timeframe?
Cedric Roberge, then a college student, built the app Pep AI with Replit in about a week.
How much revenue does the app Pep AI generate per month?
Four months after building, Pep AI brings in roughly $130K per month and is climbing toward $1M.
How did the maker come up with the idea for the app?
The idea emerged while he was scrolling TikTok and discovered an interesting market for a peptide tracking app.
Where did the app's first users come from?
The first users came through Reddit, through targeted discoverability on that platform.
Topics
Description from the channel
Cedric Roberge was a college student when he used Replit to build a peptide tracking app in about a week. Four months later, Pep AI is bringing in roughly $130K a month and climbing toward $1M. He breaks down how he found the idea scrolling TikTok, got his first users on Reddit, and why marketing matters more than the app itself. Start building at replit.com.