[Android App discussion]App Master beta test invitation

Hi guys so my classmates developed this app lock thing lately and we desperately need your opinions :p plz kindly download it on Goole Play: t.cn/R7nqgSe or simply scan the QR Code, and plz leave your valuable feedbacks~~thanks a lot~~

Plz allow me to give it a short introduction a little bit~~

This application App Master is an app lock (FOR ANDROID only btw) we developed one month ago and has been launched for about two weeks.
It is an app management tool that empowers you with best protection for your privacy. Applications you installed can be easily locked and protected with your very own pattern/password, without even a screen lock. It enables you to lock Whatsapp, Facebook, Twitter, SMS, Gmail, etc.

Here are its main features
Lock: Easily and quickly lock/unlock your Applications with a pattern or password.
Boost: One-click clean up and boost your mobile devices.
Backup: One-click batch Backup/Restore

Other Features
- Available to Set & Change the Auto-Lock time
- Small installation package(probably the smallest app lock)
- User-friendly interface
- Track your Data Usage. It tells you how much network traffic/flow you used this month.

A new function - Hide Your Gallery is about to be released in the following version, plz stay tuned!!