The Lekh Diagram is sketch recognition diagramming app. It will recognize your rough drawing and will convert them magically into beautiful shapes and connections. Get the app for free on app store: https://itunes.apple.com/us/app/lekh...am/id576124115

Please take a look at video demo:
Lekh Diagram Demo - YouTube

The app free to download the draw diagrams. To export diagrams, In App Purchase is required.

To know more about the app: Lekh Diagram | www.avabodh.com