Now you can tell you friends 'Check This App' with Check This App.
You will be able to backup all your phone apps on your sdcard, and then move them on your pc or other device, this is a great solution if you don't have an internet connection (or a slow one) and want to reset your device.
The app will share the apk files by email, or any other capable app on your system, and also use beam to easily transfer the app from a phone to another.
If you are a developer, or a app tester, and wan to give an app to your friends, this app will just do that on minutes
If you have an app downloaded before, and not anymore on play store, or downloaded from alternative app stores, then this is a fast way on sharing the app with anyone, even they don't have the source from where you got the app