Privacy Policy

Last Updated: October 25, 2026

This Privacy Policy explains what information the Mirket app (the "App") uses on iPhone, iPad, Mac and Apple Watch, and what happens to it. In short: Mirket has no accounts, everything it measures about your posture stays on your devices, and the only data that leaves them is anonymous usage and crash information and what's needed to manage your purchases.

1. Head-Motion Data

Mirket uses the head-tracking sensors in compatible AirPods and other headphones (through Apple's Core Motion framework) to estimate the forward tilt of your head. With your permission ("Motion & Fitness"), the App reads this motion data while a session runs or while you look at Mirket's live view.

• Motion data is processed on your device in real time. Raw sensor readings are not stored and never leave the device.
• The App keeps only summaries: how long you sat upright or slouched, cues, session times and routine completions.
• When you use the iPhone during a session, the App may read the iPhone's own motion sensors to tell when you are looking down at your phone or walking. This is also processed on the device only.

2. Where Your Data Is Stored

• On your devices: session summaries, settings and calibration are stored locally by the App.
• In your iCloud account (optional): if iCloud is turned on for Mirket in your device settings, these summaries sync between your iPhone, iPad and Mac through Apple's iCloud (CloudKit) in your private database. We cannot see or access this data. You can turn iCloud sync off at any time in Settings › [your name] › iCloud.
• Between iPhone and Apple Watch: the live angle, status and today's totals are sent directly from your iPhone to your paired Apple Watch through Apple's Watch Connectivity. Nothing passes through our servers.

3. Notifications

Cues, reminders and trial reminders are local notifications created on your device. We do not use push notifications and do not receive any notification data.

4. Purchases

Subscriptions and one-time purchases are processed by Apple through the App Store. We do not receive your name, email, payment details or Apple Account information. To check whether Mirket Pro is active on your devices, the App uses RevenueCat, a subscription service. RevenueCat receives a random identifier created by the App, your purchase and subscription history from the App Store, and basic device and app information (such as the device model, operating system, app version, country and currency). See RevenueCat's Privacy Policy.

5. Usage Statistics and Crash Reports

The App uses Google Firebase to understand how it is used and to fix problems:

• Firebase Analytics receives app events such as opening the app, finishing onboarding, viewing the upgrade screen, starting a session or starting a trial, together with a random app instance identifier, device and app information and an approximate location derived from your IP address. These events contain no posture measurements.
• Firebase Crashlytics receives crash reports: the state of the app and device at the time of a crash and a random installation identifier.
• Firebase Remote Config lets us adjust settings such as the length of the free daily allowance without an app update.

You can turn off usage statistics and crash reports at any time in Settings › Share anonymous usage. If you have chosen to share analytics with app developers in your device settings, Apple may also provide us with anonymous, aggregated crash and performance reports. Mirket can collect crash and performance diagnostics on your device (Apple MetricKit); these stay on your device unless you choose to send them to us from Settings › Send diagnostics. See Privacy and Security in Firebase.

6. Third Parties

Mirket contains no advertising networks. Besides Apple's own services (App Store, iCloud, Watch Connectivity and the operating system's sensors, covered by Apple's Privacy Policy), the App uses two service providers, only for the purposes described above: Google Firebase (usage statistics, crash reports and remote settings) and RevenueCat (purchase management). They process data on our behalf and may store it on servers outside your country. We do not sell or share personal data for advertising.

7. Your Choices and Rights

• You can turn off motion access, notifications or iCloud sync at any time in your device's Settings.
• You can delete all of Mirket's data by deleting the App. If iCloud sync is on, you can also remove Mirket's iCloud data in Settings › [your name] › iCloud › Manage Account Storage.
• You can turn off usage statistics and crash reports in Settings › Share anonymous usage.
• Your posture data is under your control on your devices and in your iCloud account; we never receive it. To ask about or delete the usage, crash or purchase records linked to your app's random identifiers, contact us at the address below.

8. Children

The App is not directed at children under 13, and we do not knowingly collect information from children.

9. Health Information

Mirket is a wellness app, not a medical device. The head-tilt and neck-load figures it shows are estimates for awareness only. The App does not read or write Apple Health data.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with a new "Last Updated" date. Continued use of the App after changes means you accept the updated policy.