"Lower Brightness" can reduce screen brightness below system minimum brightness

Show Back Button, Home Button and Recent Button at the bottom of the screen

75 Unique Sound Effects for everyone.
Simple UI and Easy to click sound button!

On-screen home button with press and long-press action (user-select)

Floating back button with press, double-press and long-press action

Measure area and distance with this app. Easy, Simple and Nice.

Lock any application on your phone with PIN, Pattern or Fingerprint

Adjust volume everywhere without using physical volume button.

Show Back Button, Home Button and Recent Button on screen with movable function

Floating Home Button with press, double-press and long-press action

Auto turn off mobile cellular data when there's no need to turn on. ROOT on 5.0+

150+ Cat and Dog Sound.Play it with your pet.
Your pet will response to this app

Reduce eye strain with natural screen color and adjust 0-100% screen brightness.

Automatically turn on airplane mode at night or when you want(Need ROOT on 4.2+)

Always remember WiFi network configuration with visible password & auto connect.

See current internet data speed anywhere on screen. Update meter every second.

Easy to get your Android Device ID and copy it and paste to anywhere

Get Flashing Alerts for incoming calls

Manage inventories and no limit stock lists for free!

Training your color perception. Just Click Lighter Color as Fast as possible!

keep the stars to get high score