Effective date: July 14, 2026
StatDrill ("the app") is developed for iOS. This policy explains what data the app collects and how it's handled.
StatDrill does not collect, store, transmit, or share any personal data. Every question is generated and every calculation is performed entirely on your device. The app does not require an account, does not connect to any server, and does not include analytics, advertising, or third-party tracking SDKs of any kind.
StatDrill saves your practice history, streaks, topic accuracy, and mastery progress locally on your device using Apple's standard on-device storage (SwiftData). This information never leaves your device, is not linked to you personally, and is not accessible to us or anyone else. It's deleted automatically if you uninstall the app.
StatDrill Premium is purchased and managed through Apple's App Store using StoreKit. Payment processing, billing, and subscription management are handled entirely by Apple under Apple's own privacy policy - StatDrill itself never sees or stores your payment information.
StatDrill does not use any third-party analytics, advertising, or crash-reporting services. No data is shared with any third party, because no data is collected in the first place.
StatDrill does not collect personal information from anyone, including children under 13. Because no data collection occurs, the app is safe for users of any age from a privacy standpoint.
If StatDrill's data practices change in the future (for example, if optional account features or analytics are introduced), this policy will be updated accordingly and the effective date above will change. Continued use of the app after an update constitutes acceptance of the revised policy.
Questions about this policy or the app's data practices can be sent to:
longbaoloc86@gmail.com