Your body fat progress tracker.
Keep private progress photos, estimates and your own measurements in one place. Look for a pattern across consistent check-ins.
Start free. Save only what you choose.
Get a free AI body fat estimate or use the measurement calculator. Sign in and explicitly choose to save a result to reopen it across devices. Saving is optional; signing in does not automatically save a photo.
Your body measurement tracker keeps the measurements supplied with a check-in and the method behind its estimate. A photo result can include a subjective physique score. A measurement result uses the height-and-waist equation. Compare each method with itself.
Open my private history →Make progress photos comparable.
Use similar lighting, distance, camera height, clothing and a relaxed pose. For measurements, keep tape placement and weighing conditions consistent. A different pose or one-centimetre tape change can move an estimate without establishing a real body-composition change.
If weight loss is your goal, weight alone does not explain changes in muscle or body fat. Read your weight, waist, photos and routine in context. The tracker does not diagnose a health condition or promise a particular outcome. See what affects an estimate.
| Check-in | Weight | Waist | RFM estimate |
|---|---|---|---|
| First | 82 kg | 90 cm | About 24% |
| Later | 81.8 kg | 89.5 cm | About 24% |
These small differences can reflect normal measurement variation. They do not prove fat loss.
Your check-ins stay private.
Your history and photos are not a public profile or leaderboard. You choose what to retain and can delete saved results. Read the retention periods and deletion policy, including the inaccessible recovery window for deleted storage objects.
A purchased workout plan also includes basic private logging for repetitions, loads, active minutes and completed work. The free assessment stays free. Compare the program and optional premium features.
Your starting point.
Your next step.
A free estimate, easy card selections, and an optional routine that fits your schedule.
Get my free estimate ↗Explore the example plan →