Privacy Policy
Effective October 7, 2026
The short version
We don't collect personal data. No account, no ads, no usage analytics, no tracking. Your answers and progress never leave your phone. Studying works 100% offline.
What stays on your device
Your answers, your progress, your readiness and your mock exam results are saved only on your device. We can't see them. Deleting the app deletes them.
In-app purchase
Apple processes the payment: we never see your name, email or payment details. To unlock and restore Pro, the app sends your App Store purchase receipt and an anonymous app ID to RevenueCat, our in-app purchase provider, which keeps your purchase history to confirm that Pro is yours and to give us aggregate sales reports. Nothing else is sent.
No tracking
The app doesn't track you across apps or websites, doesn't use the advertising identifier and contains no advertising or analytics SDKs.
If you email us
We use your email address and message only to answer you, and we don't share them.
Children
The app is made for HVAC/R technicians and is not directed to children under 13.
Changes and contact
If this policy changes, we'll update this page and its date. Questions: [email protected].