Last updated: 3 November 2026
KanjiBrush (“the app”, “we”, “us”) is a kanji-learning app. We built it to be private by design. This policy explains what information the app does and does not handle.
We do not require an account, we do not ask for your name or email, and we do not run third-party advertising or learning analytics in the mobile app. Your study data stays on your device.
Your learning progress — which kanji you’ve studied, streaks, study time, and drawing scores and any study sets — is saved locally on your device only. It is not transmitted to us and we cannot see it. Deleting the app removes this data.
Subscriptions are sold and processed by Apple through the App Store or Google through Google Play, depending on where you purchase. We never receive or store your payment details. To manage your subscription entitlement, we use RevenueCat, which uses an app-specific identifier and purchase records to verify your subscription status (for example, whether premium is active). We do not provide RevenueCat with your name, email or study drawings. Apple’s handling of your purchase is governed by Apple’s Privacy Policy; Google Play purchases are governed by Google’s Privacy Policy.
When you tap to hear a kanji read aloud, the app uses your device’s built-in text-to-speech. No audio or text is sent to our servers.
The mobile app has no advertising SDKs or third-party learning analytics. Subscription records are handled as described above. We do not track you across apps or websites. The website’s aggregate analytics are described separately below.
The app privacy statements above describe the KanjiBrush mobile app. This website uses Vercel Web Analytics to understand visitor counts, page views, referring sites, approximate location, and browser and device types in aggregate. It does not use cookies or track you across websites. Its temporary visitor identifier is discarded after 24 hours. This website analytics does not access your app or study data. See Vercel’s Web Analytics privacy information for details.
App Store and Google Play download links include fixed campaign labels identifying this website and the link’s placement, such as the home page or completed browser drill. Apple or Google receives the labels when you follow its store link so we can compare aggregate campaign performance in App Store Connect or Play Console. The labels are the same for everyone using that link; they contain no visitor identifier, drawings, or study data. Each store handles activity under its own privacy policy, linked above.
If you have enabled “Share With App Developers” in your iOS settings, Apple may provide us with anonymized, aggregated crash and usage statistics. This is controlled by you in iOS Settings and is handled by Apple. Google Play may also provide aggregated installation and crash reports according to your Android and Google Play settings. These platform reports do not give us access to your drawings or study history.
KanjiBrush is suitable for all ages and does not knowingly collect personal information from children.
Because your study data lives on your device, you are in control of it — remove it any time by deleting the app. For any question about data associated with a purchase, contact us and we’ll help.
We may update this policy from time to time. Material changes will be posted on this page with a new “Last updated” date.
Questions about privacy? Email g_ronen@yahoo.com.