Tare app icon

Tare

Know what your body measurements actually mean.

Tare — named for the act of zeroing a scale before you weigh — is a body-measurement and composition tracker that goes past logging. Record your measurements and Tare turns them into real insight: report tiles like BMI, FFMI, RFM, BRI, waist-to-height and symmetry scoring, trend charts with forecasting, and goals tied to the dates that matter. It can track far more than Apple Health has types for. Version 2.0 adds competitions with friends, an Apple Watch app, a Home Screen widget and Siri support. And it's private by construction — no analytics, no tracking, no third-party code and no developer servers; everything stays on your device and in your own iCloud.

Download on the App Store

Already using Body Size? Tare is the same app, with the same data — just a new name.

The Tare Today screen: current weight with its 30-day change, and the day’s briefing beneath it.
The Tare reports grid, with a tile for each derived measure.
A trend chart in Tare, with a forecast line running past the latest reading.
Body-fat percentage over time in Tare.
The macros report in Tare.
Tare projecting a weight trend forward towards a target date.
Progress towards a goal in Tare, against the date it is due.
Recording several measurements together in Tare.
A competition in Tare, showing each entrant’s change rather than their actual measurement.
The Tare Today screen in dark mode.

Captured from Tare 2.0. Some of what you can see here — including the macros and weight-projection reports — is part of Tare Pro.

Privacy notice for Tare →Support →