From the Developer
Measure length, angle, distance, height, direction and sound with your phone.
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 - Smart Light Pro
For more information, see the manual for each of the apps, watch the YouTube video and visit the blog: http://androidboy1.blogspot.com/
Even more tools will be added soon. Next will be Magnifier, Barometer and more.
Do you want to get more tools and features? Please send an email. I'll reply to it ASAP.
I hope my apps are useful to your Smart Life. Thanks.
** No connection device support (v1.4.9) : if you open this app several times with internet connection, you could open it with no connection. Try it out.