Download Protractor APK

A simple, but very handy on screen ruler. No Permissions, Free & No Ads.

Counter, Click and count upto 8 things simultaneously.

Stopwatch with great graphics, no ads & no permissions.

Pick, tweak and store RGB colors grabbed from the camera preview.

Dual channel function / waveform / signal generator for the speaker / headphone audio...

Control your electronic project with an Android device.

Count accelerometer events with this app by shaking or rotating your device.

♩ Beats per Minute from 10 up to 310 in 0. 1 BPM intervals.

Monitor strength of your wifi network, Use to find a good location for your wifi hub.

Display scrolling messages. Send encouragement, display s, get peoples attention.

Uses the GPS sensor, Magnetic Field Sensor and Accelerometer to determine...

Measure the Harmonic to Noise Ratio from your microphone.