Rebuild your working app for a nearby hobby, built in a day with AI

Kyle FowlerYeah, of course. Cardstock is a sports card value scanner. So if you have no idea what the value of your card is, you can use your phone's camera to identify the card, find its value. You can add your cards to your collection and track their value over time. And it really just helps collectors be able to find valuable cards in their collection and get what they're worth from them.

Kyle FowlerCardstock is sitting at about 15,000 active subscriptions and up to like 75k monthly recurring revenue. We get about like 13,000 downloads a month. This is Scanémon. Basically the same app, but for Pokémon cards. We launched it only a year ago,

Kyle Fowlerbut we've been doing pretty good with it. It's been slowly climbing. We're currently sitting at about like 3,400 active subscriptions, 17k monthly recurring revenue, about 16,000 new customers a month, which is actually more than Cardstock, which is pretty impressive given how long Cardstock's been around for.

Pat WallsI think that's super cool. Let's talk about your background. How do you get to the point where you have two apps making over a million dollars a year?

Kyle FowlerI started building in winter of 2019, and so then I finished it and gave a Reddit update post about having completed it, and then so I got my first downloads pretty quick immediately. I'd say all in all, probably like 6 months from idea to completion with like a 3-month gap in the middle.

Kyle FowlerWhen I built Scanémon, it was really different from Cardstock, cuz I built Scanémon last year in 2025. I tried to generate it, basically have Cursor's agent generate everything, and it did insanely well. The MVP for Scanémon I made in a day.

Pat WallsThat takes me to my next topic here. What's like the full tech stack of your two apps?