Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

RPM - Fidget Spinner Speed Meter 螢幕截圖

iPhone

About RPM - Fidget Spinner Speed Meter

RPM is a speed measurement app which uses image processing algorithms to detect the speed of Fidget Spinner in rpm ( rounds per minute ). In order to get accurate measurement you need to do the following steps.

1 - Cut a piece of aluminium foil.
2 - Warp it around a leave.
3 - Try to keep the red circle of the camera in
the middle of the Fidget Spinner.

Spin your Fidget Spinner and press start.
Measure the spinning duration and compete agains your friends!
Share the results on Facebook!