Smart tools is a collection of useful apps comprising Protractor, Ruler, Magnifier, Mirror and Torch. It is best described as collection of apps and indeed the composite parts are available as independent tools.

Smart Tools Features:-

Mirror -

You can see your face in different sizes.
You can rotate the mirror in all directions.
You can adjust the brightness.

Ruler -

Simply measure length in centimeters using your iPhone, iPad or iPod-touch.
Just put your finger on the screen and slide your iPhone. It's as simple as that.
Now you can take a ruler wherever you go! You must give it a try.
You can make it transparent and standard according to your need.

Protractor -

Simply measure angle using your iPhone, iPad or iPod-touch.
You can make it transparent and standard according to your need.

Torch -

Instant ON, fastest start time to help out quickly.
Built-in BRIGHTNESS control.
Built-in STROBE mode with adjustable brightness.
Built-in SOS signal.

Magnifier -

You can zoom in/out the images.