Android Question Prevent multiple installation of my app on same device?

[Addo]

Good morning / afternoon. I have noticed that there is some apps can copy an apk and make a multiple installation with a different Android_ID on the same device. Is there a way to prevent my app from being installed multiple times on the same device?

 

[Erel]

You cannot install two instances of the same app (app = package name).

 

[Addo]

@Erel there is an app called App cloner allow you to make exact copies of any app on your smartphone or tablet. The only difference between the original and the copy is that the copy's certificate.. And on a new copy of the app the id of the app keep changing

 

[agraham]

As far as Android is concerned the package name uniquely identifies the app. You can therefore have multiple copies of the same app installed with different package names. Each will be regarded by Android as a different app and they will not be able to access each other's private data areas. You cannot detect or prevent this.

 

[Addo]

Is there a way to check the package name of the app at run time or the certficate of the app?

 

[agraham]

Try the forum search. this might help.

Protect your application against copy and changes

This method uses the F5Steg and PackageUtils libraries from ProBundle. There's a demo available in the Play Store: https://play.google.com/store/apps/details?id=b4a.protecthw.flm The source code is attached to this message and is used as a reference in the following explanations. It will not...

www.b4x.com

 

[aeric]

Some phones support dual apps.