I won’t even try to deny the fact that this “Apk not installed, package appears to be corrupt” error is super annoying.
Am pretty sure you might have experienced this error message while working on an App using Android studio.
If you’ve been encountering this error message, you’ve come to the right place.
How to Fix Issue Of “APK not installed package appears to be corrupt” error.
The error could be from you having downgraded the target SDK Version in the gradle app module file. For example a downgrade from 24 to 22.
Just change the target SDK version to the current version and the APK file should install without giving you that error any more.
In Android Studio, go to Build -> Build APK(s).
After creating the APK file, you will see a dialogue that tells you the file has been successfully. Click on locate and proceed to install it in your phone.
I really hope one of these steps work for you.