The SPEEDUP Tennis app offers three modes of operation :

Manual mode :
- Semi-automatic speed estimation : the user takes part in the speed estimation process by providing the speed estimation algorithm with the locations of the ball along its trajectory
- The smartphone can be handheld
- Lite version : max speed = 100km/h
- Premium version : can measure speeds beyond 100km/h
- Pro version : can measure speeds beyond 100km/h
- Session timeout : 10 seconds
- works great on all iOS devices
- Fallback solution in case automatic and on-the-fly modes fail to estimate the speed due to high visual pollution in the camera's field of view

Automatic mode :
- Automatic speed estimation : the smartphone does not require any input from the user
- Lite version : max speed = 100km/h
- Premium version : SPEEDUP is able to measure speeds beyond 100km/h
- Pro version : SPEEDUP is able to measure speeds beyond 100km/h
- Session timeout : 10 seconds
- should work great on all devices (processing time may vary from one device to another)

On-the-fly mode :
- On-the-fly automatic speed estimation
- Lite version : max speed = 100km/h
- Premium version : SPEEDUP is able to measure speeds beyond 100km/h
- Pro version : SPEEDUP is able to measure speeds beyond 100km/h
- Session timeout : no timeout
- This mode requires quite high processing power, therefore it may not be supported by all the devices on the market