SitTall

SitTall is a Mac posture reminder app for people who want help avoiding slouching while working. It uses the motion sensors in compatible AirPods or Beats Fit Pro earbuds to monitor posture from the menu bar and send gentle reminders when poor posture persists.

The app tracks forward head drift, side tilt, and gradual posture collapse in real time, using the earbuds’ 6-axis motion sensors at 60 times per second. Setup is described as a two-tap calibration: first capture good posture, then slouched posture, so the app can learn a personal baseline. Reminders are sent only after bad posture continues for a configurable period, and they can be dismissed or snoozed with one click. SitTall also lets users tune sensitivity, alert duration, and cooldown to match different work styles. It runs quietly in the menu bar, with no Dock icon clutter.

Privacy is a central part of the product description. All motion analysis runs locally on the Mac, and the app uses no camera, requires no account, and sends no data off the device. It is presented as a private posture app that works without cloud storage, sync, or in-app analytics, and it runs in the macOS App Sandbox with minimal permissions so it cannot access files or the network.

SitTall is available for Apple Silicon Macs running macOS 14 Sonoma or later, and it requires AirPods with head tracked spatial audio or Beats Fit Pro. The site says it is available on the Mac App Store and notes that there is no subscription. The page also lists planned additions such as more language support, saved posture profiles, more reminder interval options, additional menu bar icon choices, custom notification sounds, and a possible iOS version.