squat counter · hold timer · no buttons
how many squats
can you rep?
or how long you can hold one. or whether you can stack ten minutes at the bottom across a day. one screen does all three, and the camera decides which.
Hips at or below the knee line, the rep counts. Above it, nothing.
Same screen, no switch. It reads which one you’re doing. Not sure which to do? →
- DEPTHA rep only counts when your hip crease reaches the top of your knee, the standard a powerlifting judge uses. Quarter-squats count nothing. Every rep validated by computer vision.
- HOLDSStay down at depth and the counter becomes a clock. Wall sits and squat holds time themselves from the moment your hips arrive.
- HANDS-FREEProp your phone up and squat. The camera counts reps and times holds, and it decides which is which. No mode picker, no wearable, no tapping.
- PRIVATENo account, no ads, no tracking. Everything stays on your phone, and the camera never records anything.
The counter, the holds and the leaderboards are all free. Pro adds a coach and trends for $3.99 once, no subscription, no ads. Pro is the only money in these apps: it’s what keeps them ad-free and pays for the next one.
why squat at all
one movement,
three different jobs
The evidence is strongest somewhere different for each one. squattime measures all three, and the three below are all actually squats.
Mobility · the hold
of walking-level muscle activity in your legs while you rest in a deep squat, against about 5% in a chair. Hadza hunter-gatherers are off their feet as many hours a day as office workers. They just don’t use chairs.
EMG field data · PNAS, 2020 · the range-of-motion payoff is coaching practice, not trial-tested
Blood sugar · the reps
lower post-meal glucose response from 10 squats every 45 minutes across a sitting day, matching a 3-minute walk every 45 minutes, and beating one continuous 30-minute walk. Calories were held equal, so the contraction did it.
18 overweight men · randomised crossover · Scand J Med Sci Sports, 2024
Strength · both
a week, two sets near failure. That’s the whole minimum. Light loads taken to failure build muscle comparably to heavy ones, and a bodyweight progression matched barbell squats in sedentary women. Holds add strength too, concentrated at the angle you hold.
Meta-analysis · J Strength Cond Res, 2017 · WHO strengthening guidance
- KNEES 13 of 15 studies in a 2024 review affirmed deep-squat safety. Past 90°, patellofemoral contact area grows, spreading load, not concentrating it. And “knees behind toes” traces to one paper from 1961.
- AGING Chair-stand performance tracks inversely with mortality across 18,252 older adults in 28 countries. Observational: a marker of frailty, not a promise that training it buys you years.
- WALL SIT The best-evidenced exercise anywhere near this subject isn’t a squat. Isometric holds beat aerobic exercise, weights and HIIT for blood pressure across 270 trials, and the wall squat ranked first of all. Supported back, no descent, nothing reaches depth, so it gets its own page rather than credit for the rep counter.
how many should you be able to do?
| Novice | 30 men | 25 women |
| Intermediate | 35 men | 30 women |
| Top tier | 45 men | 40 women |
Full-depth reps in one set, ages 18–39. Benchmark levels, not clinical norms. No peer-reviewed table for this test exists. Every age bracket, and where the numbers come from →
Squatting is a supplement, not a cure. None of the three numbers above is a treatment, and none replaces anything a doctor prescribed. But 20 minutes a week is a remarkably low bar for the upside. Not medical advice; talk to a doctor before starting. Read the full science, and the claims we won’t make →