So I built Snappit. Record 5 seconds every day. The app automatically compiles them into weekly, monthly, and yearly montages.
No sign up. No account. No server. Everything stays on your phone.
The constraint is the feature. 5 seconds is low enough friction that you actually do it, but enough to capture the texture of a day.
Built with Kotlin Multiplatform (Android + iOS from a shared codebase).
Happy to answer questions about the tech or the product. Feedback welcome.