Health Fitness apps for Android

Health and fitness apps collect the most sensitive data on the device and are covered by the fewest of the protections people assume exist. Step counts, heart rate, sleep, weight, cycle tracking, workout routes — in most jurisdictions none of this is medical data in the legal sense, because you handed it to a consumer app rather than a clinician. It can be sold, and it regularly is.

Read the privacy policy before the feature list, and specifically look for whether data leaves the device at all. A tracker that works entirely offline is meaningfully different from one that mirrors everything to a server. If the app records workouts outdoors, check whether it stores GPS traces and whether those traces are trimmed near your home address. And check what happens on account deletion — deleting the app almost never deletes the history.

Everything below has been traced to a publisher we can name. Where the app is on an official storefront, that link sits at the top of the listing and we do not try to outrank it — the store copy has the shortest chain of custody available. Where we host or mirror a build instead, the listing carries its SHA-256 hash, the signing certificate fingerprint, the version code, and the full permission list, so the file can be checked before it is installed rather than trusted after.