Privacy
Effective / published version: 2026-10-27
This Privacy Policy describes how LearnSys Chinese Writing Starter ("the app"), provided under the LearnSys brand by iGears Technology Limited, handles information on iOS and Android. The iPhone and iPad section below describes the iOS app. The remaining sections describe the Android app.
iPhone and iPad (iOS)
The iOS app recognises text in selected photos on your device using Apple Vision. Photos are not uploaded. Recognised text appears in an editable writing field so you can check it before requesting guidance.
Writing history is encrypted on your device using CryptoKit AES-GCM. Its encryption key is kept in the iOS Keychain and is restricted to that device. Grade and language preferences are stored in local settings. You can delete individual writing records from Writing history. If you share a result, iOS sends the selected content to the app or destination you choose.
The app does not ask for a student name, school account, email address or phone number. To connect to the LearnSys service, it uses a random identifier for this app installation and short-lived access credentials. When you request writing guidance, the app sends your submitted text, selected tool, grade and language to the LearnSys HTTPS service. Guidance is generated on operator-controlled self-hosted infrastructure, rather than sent to a third-party model service. Please do not enter names, contact details or other sensitive personal information.
The service stores hashed installation identifiers and access credentials, session metadata, generated guidance, credit balances and purchase-verification records. Submitted text is not stored as a separate input record or written to application logs. Generated results may contain quotations from your writing, including the original paragraph. These results are encrypted in the service retry cache and remain available for seven days; expired results are removed by periodic maintenance. Session metadata is retained for up to 30 days. If you report a result, the service stores only its reason code and reference; you do not need to send your writing again.
Optional iOS subscriptions and point packs use Apple StoreKit and the App Store. Apple handles payment. The LearnSys service processes transaction identifiers, product and subscription status, and credit records to verify purchases and prevent duplicate grants. Your payment-card details are not received by LearnSys.
You can request deletion of service data in the app or by contacting [email protected]. Service deletion removes the installation credentials, sessions, generated guidance and reports. Deidentified Apple transaction records are retained to prevent the same purchase being redeemed again. Device writing history is separate and can be deleted from Writing history.
The iOS app contains no advertising or third-party analytics or tracking SDKs. Purchases should be made with a parent or guardian. Apple processes App Store and payment information under its own privacy terms.
No account — an anonymous identity
The app creates a random device identifier and does not ask for a student name, school account, email address or phone number. The identifier is exchanged for short-lived access tokens, which are encrypted with a hardware-backed Android Keystore key before being stored. It is not an advertising or hardware ID and does not identify the student by itself.
What stays on your device
Photos and text recognition
Camera and gallery text recognition runs entirely on the device. The image itself stays in the app's cache and is never uploaded; only the recognised text — after you have reviewed it in the confirmation dialog — can be sent as part of your request.
What is sent to the LearnSys service
Purchases
The optional PRO plan and point packs are sold through Google Play, which shows all prices and handles payment. Purchase records are kept on the device to restore points and membership; your payment details never reach us.
No ads, no analytics
The app contains no advertising and no third-party analytics, crash-reporting or tracking SDKs. Its only Android permissions are internet access and Google Play billing.
Children
The app is designed for Primary 1–6 students. It collects no student names or school accounts, shows no advertising, and its AI is instructed never to request, repeat or retain personal details. Purchases should always be made with a parent or guardian.
Retention and deletion
Writing history stays encrypted on the device until you delete it from within the app. To ask about deletion of server-side records linked to your anonymous identifier, contact us at the address below.
Changes and contact
When our practices change we will update this page and the date above. Questions and requests can be sent to iGears Technology Limited, Hong Kong, at the email address below.