Where to put the phone
Phone on the floor or propped low, facing you, a few meters away. Once the counter has seen your whole plank, the feet may leave the frame.
What closes a rep
Lower the chest, press back up. The counter follows your shoulders toward your hands: the rep closes when the arms are straight again.
What doesn’t count
A rep with a hand lifted off the floor, or one the camera could not follow, is refused. So is a rep where the shoulders don’t come at least halfway down to the hands.
One tip
Keep both arms in view: they are what the counter reads.
After the set
Every set ends with the same recap: reps counted, time, pace, the longest run, pauses, whether the second half held up, and the camera angle the phone actually saw. Detail beyond the movement’s own rules is measured for the recap, never used to refuse a rep. Why we count and do not grade →