Smart Tools turns any Android device into a handyman's best friend | Android Central

Smart Tools turns any Android device into a handyman's best friend | Android Central:
Smart Tools has earned one of the top seller spots in Google Play by offering a whole suite of useful measurement tools for Android devices. These run the gamut of distance, angles, and even sound, vibration, and magnetic fields. Sensors like your Android device's accelerometer, magnetometer, camera, and microphone all act in concert to offer rough measurements, if not clean and precise ones. The developer offers a bunch of these tools stand-alone apps in addition to the single paid bundle for $2.50; the only one that isn't included in the bundle is the Speed Gun, which is available for free separately. 
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