This App is very useful for students as well professionals. This app contain two functions that is
1. Number percent calculator
2. Exam marks percent calculator
This is very light app and no need any permission as other apps need permissions for accessing your personal details etc.
Why this App is unique:-
1. Easy to use
2. Very friendly interface.
3. Nice graphics.
4. No internet needed.
5. No permission needed.
6. Ads is placed in bottom of app.
7. This is common tool.