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Privacy policy · Last updated 23 September 2026

Where your data goes.

Keel holds information about your body, your medication and what you eat. This page says exactly where each of those things goes. It is written to be read, not to be survived.

What Keel stores, and where

Everything you log stays on your phone. It is written to a database in the app's own storage, Keel works with no network connection, and there is no copy on our server.

Your phone's own backup is the only other copy. If you do not back up your phone, a lost phone is lost history — there is no account for us to restore it from.

What leaves your device, and to whom

Six services, and nothing else: our server (Supabase), analytics (PostHog), crash reporting (Sentry), food lookups (USDA FoodData Central and Open Food Facts), the language parser (Google Gemini) and subscriptions (RevenueCat). Each one gets the narrowest thing that lets it work.

Analytics receive counts and rough bands — and one thing spelled out rather than buried: which class of medication you are on, never the brand or dose.

Apple Health

If you connect it, Keel reads your height, date of birth and weight to calculate your floor, and can write each weigh-in and the protein in each food you log. It only ever changes what Keel itself wrote. Connecting is optional; every value can be typed in instead.

Who we are to you

On first launch, RevenueCat generates a random identifier for your installation. It is not derived from your device or your Apple Account. We never see your name, your email or your payment details.

Your choices

Use Keel without Apple Health. Share nothing — share cards are made only when you make one, with your weight left off unless you turn it on. Delete everything from Settings, under Data.

This website

keel-glp.com is served by Cloudflare, which counts visits with Cloudflare Web Analytics: no cookie, no identifier, nothing that follows you to another site.

If you leave your email for the launch list, it is stored on our server (Supabase) with the date you left it, and Resend sends two messages to it: a note that it arrived, and one when Keel reaches the App Store. Reply to either and we delete it.

If you write to us from the contact page, Resend delivers your message and your address to our inbox so we can reply. We keep no other copy; Resend keeps its own record of each message it delivers.

Medical disclaimer

Keel tracks and educates. It is not medical advice. It does not recommend a dose, a titration schedule, or when to start or stop medication. A target set by your clinician always overrides the one Keel calculates.

Something here unclear? That is a fault worth telling us about. Contact us