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Free — no app, no account, no ads. Uses your phone's accelerometer to detect and count squats automatically — works best held in your hand, since your pocket muffles and dampens the motion.
Checking device support…
Sensitivity & advanced settings
Daily history
Figure
5.4x
Higher risk of death within 6 years for adults who scored lowest on a simple sit-to-stand test, versus those who scored highest, among 2,002 adults.
Source: Brito, L.B.B. et al., Ability to Sit and Rise from the Floor as a Predictor of All-Cause Mortality, European Journal of Preventive Cardiology, 2014. Via julienreszka.com.
How to use it
- Tap Enable Motion Sensors (iPhone will ask permission).
- Hold the phone firmly in your hand — a pocket muffles the motion and tends to miss reps.
- Tap Start, stand still for a second, then squat away.
- Each rep gets a beep/vibration and a live count. If it misses a rep or over-counts, use −1 / +1 or adjust sensitivity above.
Detection is based on the magnitude of acceleration, so it works regardless of which way the phone is oriented — but a firm grip in hand gives the cleanest signal. It needs a real phone/tablet with a motion sensor — this won't work on a laptop.
Daily totals are saved only in this browser's local storage on this device — clearing site data or switching browsers/phones will lose the history.