Downface

Downface counts your push-ups using your phone's TrueDepth camera – no wristband, no tap-to-count button, no account. Just place your phone face-up on the floor, get into position, and start. Every time your head dips toward the screen and comes back up, that's a rep, tracked live and counted automatically. HOW IT WORKS The TrueDepth camera locks onto your face and measures how close you get to the screen on every frame. It doesn't know it's counting push-ups – it just watches the distance go down, then up, past two thresholds, filtering out noise so half-reps and jitter don't get counted. The threshold even calibrates itself to your own range of motion over your first few reps, so it stays accurate whether you go all the way down or keep a shorter range. FATIGUE, NOT JUST A NUMBER Downface compares your rolling pace against how you started the set. Slow down consistently and a quiet…