Privacy Policy

Azure AI Exam Prep · Last updated 2026-08-07

This Privacy Policy describes how the iOS app Azure AI Exam Prep (the “App”), developed by Magnus Oxenwaldt (“we”, “us”, “our”), collects, uses and shares information.

What we collect

Account information

The App requires an account. When you create one, we collect:

• Email address — used to identify your account, sign you in, and contact you about the service.
• A hashed password — managed by our authentication provider Supabase; we never see your plaintext password.

App usage

We store your interaction with the App to power its features:

• Practice attempts — which questions you answered, which answer you selected, whether it was correct, and time spent.
• Sessions — when you started a practice session or mock exam, what mode, and how many questions it contained.
• Daily quotas — how many free-tier questions you have used each day, so the free-tier limit can be enforced.
• Topic progress — your best score and pace per topic, so your progress survives reinstalling the App.
• Subscription state — whether you have an active Pro subscription, as reported by Apple’s StoreKit via RevenueCat.
• Support tickets — if you contact support from inside the App, we store what you wrote along with your app version and device model.

We use this to show you progress statistics, surface your weakest topics, and improve the App over time.

Diagnostics

We use Sentry for crash reporting. A crash report includes the stack trace, device model and OS version.

Product analytics

We use PostHog to understand which screens you visit and which features you use, so we can improve the App. PostHog events are linked to a randomly generated app-install identifier, not to your email address. You can opt out by deleting the App.

Reminders

The optional daily streak reminder is scheduled entirely on your iPhone using local notifications. We do not collect a push token and we cannot send you a push notification. Turning the reminder on or off never leaves your device.

AI Tutor

The AI Tutor runs entirely on your iPhone via Apple Foundation Models, which requires iPhone 15 Pro or newer with Apple Intelligence enabled. Your tutor questions never leave your device. We do not collect, store or have any access to what you type into the Tutor. On devices that do not support Apple Intelligence, the Tutor reports that it is unavailable rather than falling back to a server.

Data storage

Account and practice data are stored in Supabase (Postgres) in the EU (Frankfurt, eu-central-1). Crash reports are stored by Sentry. Product analytics are stored by PostHog in its US region.

What we do not do

• We do not sell your data to third parties.
• We do not show third-party advertising.
• We do not track you across other apps or websites.
• We do not use your content to train any AI model.

Your rights

• Delete your account and everything attached to it from inside the App — Settings › Delete account. This removes your practice history, sessions, progress, support tickets and your login, immediately and permanently.
• Access all data we hold about you by emailing magnus@oxenwaldt.com.
• Correct your account email by contacting support.
• Export your practice history by emailing support; we will provide a JSON export within 30 days.

Subscription handling

Subscriptions are processed by Apple via StoreKit. Apple shares minimal information with us through RevenueCat, Inc.: that you have an active subscription and which tier. We do not see your Apple ID, your payment details or your billing address. See RevenueCat’s privacy policy. Manage or cancel your subscription in your iPhone’s Settings › Apple Account › Subscriptions. Deleting your data in the App does not cancel your subscription, because only Apple can do that.

Children

The App is a professional tool and is not directed at children. We do not knowingly collect information from anyone under 13.

Changes to this policy

If we change this policy materially, we will update the “Last updated” date at the top and, where the App has a way to reach you, notify you in-app on next launch.

Contact

magnus@oxenwaldt.com