Changes made it worse

I am a teacher and used this app last year (2015) with much success. We simply measured the speed of a rolling ball using the Speed M. This year I tried the same thing and it did not work I believe because of the changes to the app. It could not recognize the rolling ball after many tries and many different iPads. Very disappointing.

dmasterson88 about SpeedClock - Video Radar, v10.2