AppSharer support many method to share your apps, you can share by message, Gmail, bluetooth, what's app, facebook, QR-Code, Dropbox etc..
By using the feature to export APK to SD card, you could backup your app to your SD card.
App Sharer will allow you to share your apps via:

★Email,
★Gmail,
★Bluetooth,
★Whatsapp,
★Dropbox,
★Google Drive,
★Facebook
★SuperBeam,
★Xender,
★Wi-Fi Direct
etc.

App Sharer will show your applications with a list, you can get a installation package directly from your momery and send it to your friends as a attachment.
When you discover a best apps, You will want to share it with your friends at once,Then,Share Apps will solve this problems. Just find the apps and share it by 1-Click, What' more,you can share multiple apps at one time.

Main Featured:
* Share Apk directly as attachment
* Share Apps Link by any applications which accept text (SMS, Whatsapp,Facebook, google reader, etc...)
* Instant search
* Backup APK to your sdcard directly

Disclaimer: Before share APK, please make sure you have the redistribution right.