Hello,
At the top right of your B4A's IDE screen where it is written 'Debug' you can select another compiling option : Release or Release (obfuscated).
Choose the right option and recompile. Your app will be able to run independantly
You may have a look at chapter 4.2.15 Compiler mode in the B4A Beginner's Guide (link in my signature).
The B4A Beginner's Guide is available for anybody.