Allow to install the app on external storage

I've looking on appbrain how to improve my app, and i've saw something about "Allow to install the app on external storage."
I didn't seen any option for that in the app settings, i was wondering how to allow that?

Special question: Proguard
I've seen that it ask me to use Proguard to improve my app, but i don't know what it is and how to use it.


Thanks.

your application can't be proguard because is a runtime, but Yves have made very good improvement during building to make optimized application in size, is still proguard for external sdk like admob or play games.

your application can be installed in external storage or device storage by user decision in app settings

Attachment 27200

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Originally Posted by Fernando

your application can't be proguard because is a runtime, but Yves have made very good improvement during building to make optimized application in size, is still proguard for external sdk like admob or play games.

your application can be installed in external storage or device storage by user decision in app settings

Attachment 27200

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Ah ok, it's strange that appbrain says to allow users to install the app on SD card to improve my ranking..