Length Measurement

This app has 3 features:
Quiz - This feature allows you to test yourself by solving some questions about the conversion of units which are generated by the app. After solving all the questions, you can view your score, high score and it also has the functionality to share your score with your friends
Tutorial - This feature teaches you the conversion of units
Calculate - This feature helps you to convert one unit to another based on the option selected from the list

For further details, you can click on the About option present in the More Options menu and read more about the app