ytools-flashlight,ruler,spirit level,protractor and sound level meter

Fixed ruler bug for iPhone6s and iPhone6s plus.
------------------
Including five tools:
Flashlight(only for iPhone) with brightness adjustment, and morse code.
Protractor featured camera and gravity.
Inch and centimeter ruler.
Sound Meter with weighting-A,C,Z.
Spirit Level.
No advertisement.
3D Touch for iPhone6s and iPhone6s plus users.
And more features will be coming.

Special thanks to Icons8.