Zero to $30K/Month App in 35 Days — Starter Story

Cedric
- College student and founder of Pepai, a peptide-tracking app launched just 7 weeks ago
- Previously built a student marketplace app for the University of Oregon that gained 800 users but no revenue
- That first experience taught him the importance of finding a specific, monetizable niche
- Believes in relentless persistence and self-belief, even when others dismiss his ideas
- Aims to scale Pepai to $1 million per month in revenue
Products and Offerings
- Pepai is a peptide safety and tracking app with the following core features:
  - Peptide dosage calculator that tells users how many units to draw based on vial amount, backwater, and desired dose
  - Dose logging with injection site tracking to avoid repeated injections in the same spot
  - Research library with peptide overviews, mechanisms of action, and PubMed-sourced references
  - Duolingo-style quizzes to educate users about peptides
  - Lifestyle tools including meal scanning, nutrition tracking, weight tracking, Apple Health integration, and progress photos
- Subscription pricing: $10/month or $45/year with a 3-day free trial
Metrics and Financials
- $51,000 total revenue in the first 7 weeks
- $11,000 monthly recurring revenue
- Nearly 2,000 active subscriptions
- $33,000 revenue in the most recent 28-day period
- A single influencer Instagram story generated $1,000 in revenue
- A single influencer post with 50,000 views drove approximately $4,000 in one day and over $10,000 total
Strategy and Growth
- Found the idea by combining three signals: a roommate mentioned peptides, TikTok’s algorithm surfaced peptide content, and Cedric developed genuine personal interest
- Validated demand by reviewing every existing competitor app and mining user reviews for unmet needs
- Built on a trending topic, which drove massive organic App Store search traffic with minimal marketing effort
- Secured influencer partnerships before launch, generating a waitlist of 300 people
- Used Reddit posts and influencer content to build early traction
- Emphasizes that marketing and distribution matter more than the product itself
- Advises founders to have a clear marketing and distribution plan before building anything
Tech Stack and Infrastructure
- Built primarily using Replit for vibe coding and Claude as a senior developer guide for setup tasks
- Revenue Cat for in-app subscription management
- Resend for email delivery
- Firebase for backend and user data storage
- Total build time was approximately 2 weeks
- Apple App Store approval took about a week of back-and-forth rejections due to medical advice concerns
- Used Apple’s expedite review process to reduce review time from days to hours
- Resolved approval issues by studying how similar apps positioned themselves to avoid medical advice flags
Lessons and Advice
- Scroll social media daily to identify what content creators and communities are obsessively talking about
- If multiple influencers are discussing something you have never heard of, it may be an untapped opportunity
- Investigate whether competitor apps already exist; their existence validates demand, and their reviews reveal gaps
- Feed competitor reviews and cancellation data into Claude or ChatGPT to generate a stronger app concept
- Recruit niche influencers before launch to validate interest and build a waitlist
- Target influencers who are trusted voices in the trend, even if they have not yet monetized their following
- Never give up on ideas you believe in, even when people around you are dismissive
- AI coding tools have made it possible for non-technical people to build and launch apps in weeks
- Building on a growing trend provides enormous organic distribution advantages regardless of app quality
- First-time founders focus on product; experienced founders focus on distribution

Summary