Developer: Smart Tools co.

A free Tools app for Android

A free Tools app for Android

Smart Protractor – A Convenient Tool for Measuring Angles and Slopes

Smart Level: Accurate and Simple Angle Measurement

Vibration Meter: Measure Vibration and Earthquake on Your Android Device

A free Tools app for Android

Thread Pitch Gauge: Accurately Measure Screw Thread Pitch

A free program for Android, by Smart Tools co..

Smart Mirror – A Simple and Useful Tool for Your Front Camera

GPS Coordinate Converter – A Smart Tool for Location Tracking

A free utilities & tools app for Android, by Smart Tools co.