Smart Tools v2.0 Build 86
Requirements: 2.3+
Overview: Smart Tools is a complete package of 5 app sets. It includes 5 Pro sets for a total of 15 tools. In a word, All-in-One.

Set 1: Length, Angle, Slope, Level, Thread – Smart Ruler Pro
Set 2: Distance, Height, Width, Area... http://www.apkformod.com/smart-tools-v2-0-build-86/