Uploaded July 2026 | Updated September 2026, 1 day ago
Bro searched the App Store, found zero competition, and decided to build it himself.
That’s how Kyle started Cardstock, a sports card value scanner that now does $75K/month with 15,000 active subscriptions.
He’d been collecting cards since he was a kid and just wanted a way to catalog them. No app existed, so he built one in Swift over about 6 months.
Bro searched the App Store, found zero competition, and decided to build it himself.
That’s how Kyle started Cardstock, a sports card value scanner that now does $75K/month with 15,000 active subscriptions.
He’d been collecting cards since he was a kid and just wanted a way to catalog them. No app existed, so he built one in Swift over about 6 months.










