A self-taught developer turned his card collecting hobby into two scanner apps that he says make $120K a month
Kyle Fowler built Cardstock by hand, then used Cursor's agent to make the MVP of Scanemon, a Pokemon card version, in a day.
Subject: Cardstock and Scanemon (Kyle Fowler)Subscription mobile apps that identify and value collectible cards
Case Overview & Background
Kyle Fowler launched Cardstock six years before the interview. It began with three people in a basement making a few hundred dollars a month. Cardstock lets collectors scan a sports card with their phone camera, find its value and track their collection. A year before the interview, his team launched Scanemon, the same idea for Pokemon cards.
How AI Is Used
Step-by-Step Process
He made Cardstock for card collectors like himself.
Scanemon applies the same scanner to Pokemon cards.
Cursor's agent generated the Scanemon MVP in a day.
Customer Acquisition & Distribution
Limitations, Risks & Failure Modes
What may not apply to you, and what could go wrong:
- The figures are self-reported and were not independently checked
- Collectible card markets go through hype cycles
- The first app took years to grow before AI tools existed
Key Takeaways
- Once one app works, AI can help you clone it for a new niche in days
- Hobbies you know well are a good source of app ideas
Sources
Starter Story: I Turned My Hobby Into $120K/Month Apps
Note: Video interview with transcript. States the 120,000 a month figure, Cardstock subscriptions and the AI build of the second app.
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