ApkProtector Premium

ApkProtectorは、Androidアプリケーションのプロテクターおよび難読化ツールです

ApkProtector is the protector and obfuscator for Android applications. It helps you secure your applications and libraries against unauthorized or illegal use, reverse engineering, and cracking.

For the application to work properly, you need Internet access to check for updates. And you also need access to the internal storage to save your protected applications.