This is the free version of Bike Sensor to get you an idea how it works on your bike! Try it and have fun!
The app measures the maximum leanangle as well as the acceleration and deceleration while riding your motorbike and hold its values until it will be reset after a specific time.
Now you can figure out what your skill is. But also be careful while riding. You can't even confide the values and try to get the maximum when the street is wet for example.