How can you tell?

The "Implemented Features" section in the readme has every heading denoted with an emoji, that's something I've seen pretty much only from LLMs

I actually did that :(

Considering the comments, how much of it was vibe coded? Since you said you did use AI help?

not much, mainly used it to describe how certain iOS 26 implementations work compared to previous iOS versions.

Good if you didn't just vibe code, at least for maintainability. Your app looks nice btw, I hope you'll keep working on it!

Consider my hypothesis disproven!

I'm an iOS developer, usually it will take me over 500 commits before my app gets working. The app's initial commit seems complete already.

Did use an AI coding assistant yes as this is the first app I've built but I also didn't publish it on Github until the app was near 100% working first