Privacy

Last updated: 29 October 2026

Rupl runs entirely on your Apple Watch. It has no server, no account and makes no network requests. This page describes what the app reads, what it writes, what it keeps and what it never does — the short version is that Rupl itself sends nothing anywhere; workouts are saved to Health.

What the app reads

With your permission, Rupl reads your workouts from Apple Health — runs and other sports — with their duration, distance and heart rate, and how each was recorded: by which app or device, whether it was entered by hand, whether it was indoors and in which time zone. It also reads your date of birth, to suggest your age during setup. During a run it also reads what your watch measures — active and resting energy, steps, speed, running power, stride length, vertical oscillation and ground contact time — because Apple Health saves them with a workout only for an app that may read them; Rupl does not use them for the plan. It reads no other Health records. Apple Health does not tell the app whether you refused a permission or simply have no data; both look the same, and the app does not ask again about the same data.

What the app writes to Health

If you allow it, each run with Rupl is saved to Apple Health as a running workout: time, distance, heart rate, active and resting energy, steps, speed, and running power, stride length, vertical oscillation and ground contact time — those your watch measures. An outdoor run is saved with its route; an indoor run has no route. Each kind of data is a separate permission, and Rupl does not write what you have not allowed; if an app update adds new kinds of data, the watch asks once for permission to write them. If you do not allow workouts to be written, the run is counted only in the app's file on the watch. Rupl adds a few internal tags to the workout: the run's kilometres that count towards the daily limit, whether the day counts towards that limit's baseline, the type of session completed (if it was in the plan), an indoor flag and the time zone. Rupl also writes your effort rating after an interval session (watchOS 11 and later). What happens to data in Health afterwards — iCloud sync, for example — is up to Apple and your settings.

What is kept only on the watch

Your settings, the plan, the log of workouts and decisions, your effort ratings after interval sessions (on watchOS 11 and later they are in Health as well), parkrun and race start times, and the learned locations where they start are kept on the watch in the app's file. Rupl does not write the learned start locations to Health, though a run's route, if you allow it to be written, begins where you started. Neither start locations nor the route go into the diagnostic file. GPS is on only during an outdoor run: it measures distance and pace, remembers where a parkrun or a race starts and provides the points of the route.

What the app never does

No account. No sign-in. No analytics, no advertising identifiers, no third-party crash reporting, no tracking of any kind. The app contains no code that contacts a network. Rupl sells, shares and publishes nothing, because it has nowhere to send it.

Diagnostics

If you choose to report a problem, the Diagnostics screen can export a file that you send yourself, through the system share sheet, to a destination you pick. It contains the app's file — settings, training state, the log of workouts and decisions — and the app version. It never contains GPS tracks, second-by-second heart rate or start-location coordinates, and it is never sent automatically.

Crash reports

If you have enabled sharing analytics with app developers in your device settings, Apple may send us crash reports through its own service. This is Apple's channel, governed by your system-level choice, and you can turn it off in Settings at any time.

Children

The app is not directed at children under 13.

Deleting your data

There is no account, and the app sends us nothing. If you sent us a diagnostic file or an email yourself, write to us and we will delete it. Deleting the app deletes its file on the watch. Workouts written to Apple Health stay there, under your control, and can be deleted there.

Questions: hello@rupl.org