<p><span>User your device screen as a ruler or calibre, measure real objects in fun and interactive way...&nbsp;</span><br /><br /><span>* Explore metric or imperial units (mm or inche).&nbsp;</span><br /><span>* Measure length, angle,radius &amp; diameter .&nbsp;</span><br /><br /><span>How to use ? :&nbsp;</span><br /><span>1. Place your device on a flat surface...&nbsp;</span><br /><span>2. Place any object on the screen and select the relevant shape.&nbsp;</span><br /><span>3. Click any control point and drag your finger across the screen.&nbsp;</span><br /><span>4. Double click in order to select or deselect all control points.&nbsp;</span><br /><span>5. Pinch the screen in order to scale the selected shape.&nbsp;</span><br /><br /><span>* Watch on YouTube :&nbsp;</span><br /><span>https://www.youtube.com/watch?v=6n65TlH0xTg&nbsp;</span><br /><br /><span>* Please make sure to use screen protector in order to avoid scratches.&nbsp;</span></p>