Privacy Policy

Last updated 8 November 2026

Scuto is a personal logging tool for people taking GLP-1 medication. In short: there is no account, Scuto has no server of its own, and what you log stays on your iPhone.

Who we are

Scuto is made by Yalçın Arslan, an independent developer, who is the data controller for the little information described below. Contact: dev@yalcinarslan.com.

What you log stays on your iPhone

Your medication, schedule, doses, injection sites, side effects, weight, protein, fiber, water, goals and notes are saved only on your iPhone, inside the app. We never receive them. Anonymous usage statistics, which never include your log, are described below; you can turn them off in the app. There is no advertising and no tracking, and Scuto does not ask to track you.

• Reminders are scheduled on your iPhone by iOS. Nothing is sent to us.
• The widget and Control Center read a small copy of your dose schedule that stays on your iPhone.
• Apple Health is used only if you turn on "Weight with Apple Health" in Settings, and only for weight: the weights you log are saved to Health, and weights other apps and scales saved in Health are added to your log. Health keeps them under Apple's own privacy rules; we never receive them. Turning it off stops this and deletes nothing.
• The PDF for your doctor and the password-locked copy are made on your iPhone, only when you ask, and go only where you send or save them.

Subscriptions

Apple handles payment; we never see your card or your Apple Account. To know whether Premium is active, the app uses RevenueCat, a subscription service. RevenueCat receives a random ID made by the app (not your name or email), your purchase and renewal records from Apple, your device's language region and currency, and the IP address that any internet connection carries. It receives none of your health log. See RevenueCat's privacy policy.

Anonymous usage statistics, and how to turn them off

Scuto shares anonymous app usage to improve the app. It is said on the screen after "Get started" (or, when you restore from a copy, on the copy screen), and nothing is sent before that screen. The switch "Share anonymous app usage" in About turns it off at any time; once off, nothing more is sent and anything not yet sent is deleted from your iPhone. Premium never depends on it.

While it is on, the app sends Mixpanel, an analytics service that works for us as a processor, only: which screen was opened and roughly how long it stayed open (as a range such as "15-60s"), the steps of the subscription screen (shown, closed, started, bought, cancelled, failed) with the plan length, and the type of an error (for example "save" or "load"). Mixpanel also receives your iPhone model, iOS version, app version and screen size, and the IP address that any internet connection carries; the app asks Mixpanel not to use it for location. The ID is random and new every time the app starts, so sessions are not linked to each other or to you. Nothing from your log is sent: no medication, dose, injection site, side effect, weight, amount, note or count. We do not try to identify you from these statistics or combine them with other data, and Mixpanel may not use them for any other purpose. See Mixpanel's privacy policy.

How long data is kept

Your log stays on your iPhone until you delete it or the app. Deleting the app deletes the log, so save a copy first if you want to keep it. Subscription records are kept by Apple and RevenueCat under their own policies. Usage statistics are kept by Mixpanel for up to two years.

Your rights

You can see, change and delete your log in the app at any time. If you are in the UK, you have rights under UK data protection law, including access and erasure. Write to us for anything about the subscription records, and you can complain to the Information Commissioner's Office (ico.org.uk).

Adults only

Scuto is meant for adults and is not directed at children.

Changes

If this policy changes, the new version is posted here with a new date.