APK installer and backup

APK installer and backup to install, backup, restore, share you applications, with simple and elegant design.
This APK installer and backup is easy to use.
Feature:
-Backup to apk file
-Install application
-Support multi selection
-Easy to backup APK
-Easy to install APK
-Share app to bluetooth or Wi-Fi APK files
-Quick to install APK
-Quick to uninstall application
-Multi Backup
-Multi Install
-Search application for backup
-Search application for restore
-Open app detail
-App manager
-Show appplication usege
-Easy button backup app APK

*** Notice: App Backup cannot backup data or settings of apps for you, but it only backup the apk files.