Enabling the "Far field" option makes speed measurement possible for balls travelling at distances ranging from 2 to 5 meters, at the expense of a loss of speed measurement accuracy. It is recommended to enable this option if and only if no other choice is possible.

Lighting conditions may have a significant impact on the speed measurement quality since the app relies on the camera to measure the speed of the ball. Currently, the app performs best outdoor in daylight as well as indoor in environments with good lighting conditions (bright and flicker-free lighting). Whether outdoor or indoor, should the lighting quality be too low, it is recommended to use an auxiliary lighting. If you are experiencing poor lighting, click on the button below to find out how to improve your speed measurement experience.

Disturbances in the camera's field of view may cause the speed measurement algorithm to produce a speed measurement while no ball was travelling in front of the camera. Even though the SPEEDUP technology was designed to filter out most of the real-world disturbances, make sure the camera's field of view does not contain a high level of visual pollution. In the event a false trajectory is detected, the speed measurement information produced by the algorithm may be ignored.

When the light source (e.g., the sun or an artificial source of light) is located in front (resp. at the back) of the camera, the ball appears generally dark (resp. bright) on the image since approximately only half of the ball is exposed to the light source. This fact must be taken into account when setting up a speed measurement session. As a rule of thumb, when the source of light is located in front (resp. at the back) of the camera, make sure that the background scene is not too dark (resp. not too bright) in order to maximize the contrast between the ball and the background (the speed measurement quality depends significantly on the contrast between the ball and the background scene, as they appear on the image).

The SPEEDUP technology was tested on devices released after September 2019. For older devices, a lack of processing power can disrupt the algorithms. If you are experiencing trouble, you may try to enable the  "Old device" option in the application settings. This will result in configuring the algorithms in a mode that consumes less CPU resources, at the expense of a slight drop in the performance of the algorithm.

The SPEEDUP Softball app was designed and optimized with the aim of measuring the speed of a softball. Using the app with balls significantly larger or smaller than a softball will result in erroneous speed measurements. The diameter of the ball is assumed to be equal to about 3.82 inches (97.1 mm) which corresponds to the diameter of a softball whose circumference is equal to 12 inches. If you are using a 11 inches softball, go to the Account/Settings page of the app and select the right ball size.