Gemel
Privacy Policy
Effective August 25, 2026Gemel is built so that there's as little to explain here as possible. There's no account, no sign-in, and no server that Gemel's developer operates or can see your data on. This page describes exactly what the app does with the data it touches.
No accounts, no sign-in
Gemel doesn't ask you to create an account or sign in. If you pair with someone, that connection is identified by your device's iCloud account — Gemel never collects an email address, phone number, or password.
What's stored, and where
Everything you log — calories, protein, timestamps, your goals, your streak — is stored in an encrypted database on your device. It is never uploaded to a server, because Gemel doesn't run one. Deleting the app deletes this data.
Apple Health
If you grant permission, Gemel reads calorie and protein entries you've logged in other apps through Apple Health, so they count toward your day. It also writes what you log in Gemel back to Health, so it appears alongside the rest of your health data there. This exchange happens directly between Gemel and Health on your device through Apple's HealthKit framework — it never passes through us. You can turn either permission off at any time in Settings → Privacy & Security → Health.
Pairing, over iCloud
Pairing lets you share a run with one other person. It works entirely over Apple's CloudKit — there's no Gemel server involved, and no third party sees it either.
What's shared with your pairing partner:
- The name you've set in Gemel, and whether you're building or cutting
- For each day since you paired: your progress toward each goal as a percentage, whether you hit each goal, whether you logged anything at all, and when your day started and ended
What's never shared, with your pairing partner or anyone else:
- Your actual calorie or protein amounts, or your specific goals
- Individual food entries, or anything from before the pairing began
Ending a pairing ends it for both of you. Your partner keeps whatever history they already have on their own device — deleting your data doesn't reach into theirs, the same way theirs can't reach into yours.
Photos
If you choose to save a share image summarizing a run, Gemel asks for permission to add that one image to your Photos library. It only ever adds — Gemel cannot read your existing photos.
Subscriptions and payment
Logging in Gemel requires a subscription (viewing is free). Purchases are handled entirely by Apple through the App Store — Gemel never sees or stores your payment details. Apple's own privacy policy covers that part of the transaction.
No ads, no analytics, no trackers
Gemel includes no advertising, no analytics, and no third-party tracking SDKs of any kind. The only third-party code in the app is an open-source local database library that runs entirely on your device and never communicates with a server.
Deleting your data
"Delete all my data," in the app's You tab, erases every day you've logged and ends your pairings — on your side; a paired partner keeps their own copy. This can't be undone. Apple Health keeps its own separate copy of anything Gemel wrote there; Gemel deleting its data doesn't touch it. To remove that too, go to Health → Browse → Nutrition → Data Sources & Access → Gemel → Delete All Data. Uninstalling the app removes everything stored on your device the same way.
Children
Gemel doesn't knowingly collect information from anyone, of any age, because it doesn't collect information at all — nothing here leaves your device except what you explicitly choose to send to Apple Health or to a pairing partner.
Changes to this policy
If anything here changes, this page will be updated and the date at the top will change with it.
Contact
Questions about this policy or how Gemel handles data: support@getgemel.com.