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 – Smart Measure Pro
Set 3: Compass, Metal detector, GPS – Smart Compass Pro
Set 4: Sound level meter, Vibrometer – Sound Meter Pro
Set 5: Flashlight, Magnifier – Smart Light Pro