APK crashes before even starting

Did it work in Thunkable Live? If so, it may be an issue with stored variables if you’re using those. That’s just a guess… I’ll take a look your project, too.

It’s possible one of these issues is also causing the crash: [Solved] While testing on the phone I get error message as something gone wrong

It does not crash in Thunkable Live on an iPhone. I don’t have an Android device I can test this on at the moment.

I would try this:

  • Add a new blank screen. Add a button to it. Set the button to navigate to Screen 1.
    • Does the app crash on the new screen?
    • Does it crash when clicking the button?
    • Or does it crash right after displaying the umidità screen?