Privacy Policy
Updated 10 November 2026. Applies to the IANT app (App Store name: IANT – Play & Learn Languages / IANT – Chơi Mà Học Ngoại Ngữ; formerly IANT – Lớp học) and the mini apps IANT develops inside it.
1. Data we collect
- Account: the identifier Apple provides when you sign in with Apple, and a display name (shared by Apple, set by you, or a placeholder such as "User 1234"). If you create your own account: a username, a password and a recovery code, both stored only as hashes (nobody, including us, can read them back). Guest mode creates an account that is not linked to Apple. We do not ask for an email address or phone number.
- To stop password guessing, after a failed sign-in the server temporarily stores a hash of the network address (never the address itself) and deletes it within 1 hour.
- Flashcards: decks you create (visible only to you), your review progress for each card, and the number of reviews per day.
- Word Battle: each round’s score, number of correct answers, topic and time played.
- Homework (only for people who used it before): class names, student names in the class, assignments, submissions (video, photo or text), grades and feedback.
- Games and Journey: the language you are learning, levels cleared and stars, each round’s score, your learning streak, and your weekly league group (people in your group see your display name and weekly stars).
- IANT Plus: when you buy in the app, the server stores the transaction ID issued by the App Store or Google Play, the plan and its expiry date so it can unlock Plus for you. We never receive card numbers or payment details: Apple or Google handles payment.
- Notifications: your device’s push token, if you allow notifications. The daily learning reminder is scheduled on your device and is not sent through our server.
- Safety: content reports and the list of people you have blocked.
- Language: the interface language you choose, stored on your device.
The app opens the camera, microphone or photo library only through the system picker when you choose to record or pick a file; your phone asks for permission the first time. Only files you choose are uploaded.
2. How we use data
Only to run the features you use: sign-in, your review schedule and progress, leaderboards, notifications, and handling abuse reports. We do not show ads, do not sell or share data with third parties for advertising, and do not use third-party analytics or tracking.
Processors acting for us: Cloudflare (hosting and servers); Apple (Sign in with Apple, and the APNs push service, which receives your device token and the notification content).
3. Who can see your data
- Your own decks and learning progress are visible only to you.
- The Word Battle leaderboard shows a shortened name (for example "Anh N.") and the best score of the week.
- In Homework: a class’s teacher sees the names, submissions and grades of students in that class; students see their own assignments, grades and feedback.
- Each mini app receives your name and user ID only after you agree on the add-mini-app screen. Notifications for each mini app are off by default.
4. Storage
Data is stored on Cloudflare infrastructure (D1 database and R2 file storage), which may be located outside Vietnam, and is transferred over encrypted HTTPS. Links to view submitted videos are signed and expire after three hours.
5. Students and children
The app has no ads and no tracking. In Homework, students can join a class only after confirming that a parent or guardian has agreed. Parents can ask to see or delete their child’s data by emailing us at the bottom of this page.
6. Deleting your data
Delete your account inside the app: Me → Delete account. Deletion is immediate and cannot be undone. It covers your account details, decks and learning progress, game scores, classes you created (with their assignments and submissions), your submissions and files, and your block list. If you signed in with Apple, the app also revokes IANT’s Sign in with Apple access. Reports you sent are kept with your name removed.
7. Contact
Any privacy question: support@iant.vn.