Flutter: Build and deploy in release Mode on iOS 14+. How long usable?

Question

If I build and deploy my flutter app in release mode through "Edit scheme" => Release mode (description here: https://stackoverflow.com/a/61975751/11543864): How long can I use this app on my iPhone without reinstalling the app?

Answer 1

I tested it and the result is following: The app is in release mode for 7 days = 168h available. After that you have to reinstall the app