“I personally love to track my activities... I looked at the app store. There wasn't a great app that tracked your specific niche activity like a cold plunge like a sauna like a cold shower. And I figured I could build this experience...”

Pick Hyper-Niche App Store Gaps Where No Quality App Already Tracks The Activity

Pre's validation step is literally opening the App Store and searching for the hyper-specific activity he already does. If no quality app exists for the narrow use case, that's the green light — a low-competition ASO slot where a focused app can become the category top result fast.