GymLift Privacy Policy

What GymLift collects, where it goes, and what never leaves your iPhone.

The short version

Your Apple Health data stays on your iPhone and in your own iCloud. It is never sent to us.
Your workouts, check-ins and plan are stored in your private iCloud database. We cannot read it.
Coach texts (optional, Pro) send only derived numbers to our proxy — a readiness band, reason codes and percentage changes — under an anonymous token. Nothing is stored.
We use two third-party services: Amplitude for product analytics (events without health content) and Adapty for subscription status. No advertising SDKs.
Strava receives a workout only when you confirm the post.
Delete account inside the app removes your iCloud data, our anonymous identifiers and the Sign in with Apple link.

Data	Where it lives	Purpose
Apple Health readings you allow (sleep, heart rate, resting heart rate, HRV, heart-rate recovery, active energy, steps, body mass, nutrition, wrist temperature, respiratory rate, blood oxygen, VO₂ max, workouts)	On device; readiness is computed on the iPhone and Apple Watch	Your daily readiness score and the adaptation of your session
Workouts, sets, check-ins, training plan, body-weight entries	Your iCloud private database (CloudKit) and your devices	The app itself; restore on a new device
Derived coach-text features: readiness band, reason codes, percentage deltas, the list of changes	Sent to our Cloudflare Worker and forwarded to Anthropic's API; not stored by us	Turning the engine's decision into a sentence (Pro, when "Coach texts by AI" is on)
Product analytics events (screen and feature use, no health values, no free text)	Amplitude	Understanding which features work
Subscription status	Adapty and Apple	Unlocking Pro; receipts stay with Apple
Sign in with Apple user identifier	Your device and your iCloud database	Account identity; revoked on Delete account
A workout you choose to share	Strava (only after you confirm), or the app you pick in the share sheet	Sharing

Sell or rent your data.
Send raw Apple Health samples, your name or your Apple ID to any server.
Use your data for advertising or tracking across apps (App Store "Data Not Linked to You · No Tracking").

Settings → Privacy & coach texts: turn coach texts off (no network calls at all), manage Apple Health access.
Settings → Your data: export everything as CSV, or delete your account and all data.
Strava: disconnect any time in Settings.

GymLift is for adults and people 16 and older. We do not knowingly collect data from children.

We will update this page when the data flows change and note the version below.

Version 0.2 · 11 September 2026 · Questions: hello@gymlift.app