App Lock (HI App Lock) PRO apk 1.81

App Lock (HI App Lock) PRO apk 1.81 android app 

★ Comparing to other app lock tool, HI App Lock is MORE easy, powerful, reliable with LESS memory/battery consumption.

HI App Lock can lock SMS, Contacts, Gmail, Facebook, Whatsapp, Gallery, Market, Settings, Calls and any app you choose, with abundant options, protecting your privacy.

★ With the help of HI App Lock, you may:
*prevent your sensitive info from unwanted eyes;
*prevent your phone from being messing up by your kids;

...

★ HI App Lock Features:
• Protects any apps using password
• Lock incoming or outgoing calls
• Lock System Settings
• Lock Google Play Store
• Widget for quick locking/unlocking
• Quick lock switcher on status bar
• Re-lock policy: every time, until screen off, 1/3/5 minutes
• Prevent apps from being uninstalled
• Theme support
• Fake Error Message
• Random keyboard
• Hide HI App Lock's icon from launcher
• HI App Lock can be prevented from being uninstall
• HI App Lock cannot be killed by task killers
• Little memory footprint and power-saving

What's in this version:
V1.81 update(2013-6-21)
1. Quick fix a potential issue related to password in rare cases according to feedback.
V1.80 update(2013-6-20)
1. Add pattern lock(In Settings - Set password)
2. Add option of "Add to device admin"
3. Optimize to auto-restart protecting service, when HI App Lock being killed
4. Refine UI of Tool tab
5. "About and More" setting
6. Some other improvement and bug fix

Download here 

download link 1

download link 2