GTM Sauce

Cardstock · B2C · sports card value scanner

Build the app you wanted for your own hobby when the App Store has none

Grew into ~$75K MRR over six years

Workedvalidationpositioning-niche

What they did

A lifelong card collector wanted to catalog and sort his cards and look them up away from the physical collection. He searched the App Store, found no app for it, and built one himself. He recommends keeping a notes doc of slow, repetitive tasks in your own life and building the most minimal solution.

What happened

Cardstock now ~15K active subscriptions and ~$75K MRR
Stage
Idea

In their words

I Built Two Apps That Make $120K/Month

Play from 7:01
6:26

Pat WallsCool. All right, well thanks for sharing your tech stack. One reason why I wanted to bring you on the channel is that you built like these really cool businesses from your hobbies. Can you tell me more about how you came up with the idea, validated it, and you know, were confident enough that this could be a business idea that could make a lot of money?

6:40

Kyle FowlerThe way I thought about it originally is I've been collecting cards since I was a kid. I was just like, "I want to catalog my cards, and I want to sort them." And I realized I would have no way to know what card was which if I couldn't physically be with my collection, no matter how well I sorted them. And that got me spinning of like, "Oh, okay. Well,

7:01

Kyle FowlerI'm sure I could digitize this and put it on my phone. There's got to be an app for that." And so I went on the App Store, and there was no app for it. So, I was like, "Well, I want to build one." I've just always wanted to work for myself doing something I love, and what better way than solving your own problems to do that?

7:19

Pat WallsSo even though you have a couple really successful apps under your belt, you still can't guarantee success. I think that's a good lesson for anyone watching this, that you still have to go through all those learnings to figure out if this thing can actually work.

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Tags: app-store, scratch-own-itch, hobby, gap-in-app-store