Privacy Policy

1. Overview

MathWake ("the app", "we", "us") is an alarm clock app that requires you to complete wake-up missions to dismiss your alarm. We built MathWake to be privacy-respecting: the app works primarily on your device, and we keep the data we collect to a minimum.

This Privacy Policy explains what information is processed when you use MathWake, why, and the choices you have. By using the app you agree to the practices described here.

2. Information We Collect

2.1 Data stored on your device

Your alarms, timers, mission settings, sound choices, history and app preferences are stored locally on your device (using on-device storage). We do not upload this content to our servers. If you use the Sleep Tracker, your sleep session data — including ambient noise levels measured by the microphone (decibel values only, never audio recordings) — is also stored only on your device and can be deleted at any time in the app settings.

2.2 Data processed by third-party services

To manage subscriptions and understand how features are used, we rely on a small number of trusted providers. These may process limited technical information as described below.

• A random app identifier that our analytics and purchase providers use to count usage and keep your subscription in sync — never your device's advertising identifier.
• Device & app information such as device model, operating system version and app version.
• Usage events such as which screens are opened or when an alarm is created or dismissed (no personal content).
• Purchase and subscription status to verify your subscription and restore purchases.
• Approximate location (country or city) that our analytics provider derives from your IP address, used only for aggregate statistics. We never access your device's location.
• Apple Ads attribution: if you installed MathWake from an Apple Ads advertisement, Apple's privacy-preserving attribution data (which campaign or keyword led to the install). It contains no advertising identifier and needs no tracking permission.

We do not ask for your name, email, phone number or account, and we do not collect the answers you type into missions or any camera images.

3. How We Use Information

• To provide core alarm, timer, stopwatch and mission functionality.
• To measure which of our own App Store ads lead to installs and subscriptions.
• To process your subscription and restore purchases.
• To understand aggregate, anonymous usage and improve the app.
• To diagnose crashes and keep the app reliable.

4. No Ads, No Tracking

MathWake is a subscription app and shows no ads. We do not track you across apps or websites owned by other companies, we do not ask for App Tracking Transparency permission, and we do not use your device's advertising identifier (IDFA).

Earlier versions of MathWake were ad-supported and showed ads through Google AdMob. If you used one of those versions and allowed tracking, you can turn it off at any time in your iPhone's Settings → Privacy & Security → Tracking.

5. Purchases & Subscriptions

MathWake is offered as an auto-renewable subscription managed through the Apple App Store and processed via RevenueCat, which handles entitlement and receipt validation. Your payment is handled entirely by Apple — we never see or store your card or billing details. RevenueCat receives a random app user identifier, your purchase status and, where available, Apple Ads attribution data, to keep your subscription in sync across reinstalls and devices.

6. Analytics & Crash Reporting

We use Firebase Analytics and Mixpanel to collect usage events (for example, "alarm created" or "mission completed"), linked to a random app identifier rather than to your name or email, and Firebase Crashlytics to receive crash reports. These events contain no personal content. They help us understand which features are useful and where the experience can be improved.

7. Device Permissions

MathWake may request the following permissions, each only for the stated purpose:

• Notifications — to alert you when an alarm or timer fires, including backup notifications.
• Exact alarms / background activity — so alarms ring reliably at the set time, even in the background.
• Motion & sensors — for the Shake mission, shake-to-snooze and Sleep Tracker movement.
• Microphone (optional) — used only by the Sleep Tracker to measure ambient noise levels (decibels) while you sleep. No audio is ever recorded, stored or uploaded.
• Camera — used only by the Object Hunt, Barcode and Squat missions. Images are analyzed on your device and are never stored or uploaded.

You can change or revoke these permissions at any time in your device settings.

8. How Information Is Shared

We do not sell your personal data. Limited technical data is shared only with the service providers named above (Google Firebase, Mixpanel and RevenueCat) strictly to operate the features they power. We may also disclose information if required by law or to protect the rights, safety and integrity of our users and the app.

9. Children's Privacy

MathWake is not directed to children under 13 (or the minimum age required in your region), and we do not knowingly collect personal information from them. If you believe a child has provided us with data, please contact us so we can remove it.

10. Your Choices & Rights

• Turn off reminder notifications at any time in the app settings.
• Delete your sleep and stats data at any time in the app settings.
• Manage or cancel your subscription in your App Store account settings.
• Delete all locally stored data by uninstalling the app.
• Depending on your region (e.g. EEA, UK, California), request access to or deletion of data held about you by contacting us.

11. Changes & Contact

We may update this Privacy Policy from time to time. Material changes will be reflected by updating the "Last updated" date above. Continued use of the app after changes take effect constitutes acceptance of the revised policy.

For any privacy questions or requests, contact us at mathwakealarm@gmail.com.