I have in my FireBase Database the address I use to download my APK through the website: www.medialfire.com. So I have TAG: Share APK and TAG: VERSION. In TAG Version will be placed the version number and do not share APK, will be placed the address to download the APK.
So I assembled these blocks below so if there is a newer version, the new APK can be downloaded. But as I would do after being downloaded, do the installation automatically?
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This might help App Inventor Tutorials and Examples: Activity Starter | Pura Vida Apps
/Boban
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Wow! Thanks for sharing this helpful link with us @Boban
I, personally, always love to do something new in my apps… And, this gonna be a new addition in my library, for sure… 
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