Where to put the phone
Give yourself a step of room toward the phone. Whole body in frame at the bottom of the lunge.
Stand at roughly 45° to the phone. The counter still reads the cycle from the front or the side; the angle only decides how much technique detail the camera can see.
What closes a rep
Step forward, lower, push back to standing. Every return to standing counts.
What makes the counter wait
Alternate legs. Stepping so far that the lead knee leaves the frame will delay the count until you are back in view.
Alternating movements are counted on every drive. A repeat on the same side is still counted, it is just not ranked, and the recap shows “alternate sides” as the advisory.
One tip
Three-quarter angle keeps the rear shin visible, which is what the technique read uses.
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. Technique detail is measured for the recap and never used to refuse a rep. Why we count and do not grade →