I would like to know if there was no app installed in the Android phone, there is no way to know that date . I want to know this to implement a limited test / demo version at the time of an application.
I can save the date of use for the first time, but the tech-savvy user should remove the database or support files to use ADB.
Thank you for your help.
The app has made a server call on the first launch and saved the date installed there. It is still not right because the user can install it and use the app after several days, but in terms of usage it should be sufficient.
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