- Do you need to count without taking your eyes from counted things? How many bunnies crossed the road? How many cells on the glass counter? How many colonies on the Petri dish? Just tap on the screen and the your count goes up.
- Do you want to know 0-60 mph of your car? Do you need to measure time of the event that happens quickly, so you measure the time without taking eyes from the event? Car takes off and you press on the screen. Car reaches 60 mph and you take your finger from the screen. Bunny appears from the forest and you press the screen, you release screen when bunny disappears in the forest: people argue for how long they saw bunny - 3 seconds, 5 seconds, but you look at the Rapid counter and know exact time bunny was there with precision up to 0.01 of second.
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