Don't you think there should be a simpler way?
Sharing apps with your friends is possible easily now with Apk Share.
Apk Share app show your applications with a list, you can get a installation package (Apk file) directly from your memory and share Installed Apps file directly as attachment via Bluetooth, Email, Drop-box, Google Drive etc.
Installed applications can be backup in the storage card..And also you can overwrite backup of old application to updated version.
No rooting required.
When you discover a best apps, You will want to share it with your friends at once,Then, Apk Share will solve this problems. Just find the apps and share it by Click.
Now share your apps, the simpler and cooler way!