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Last updated · 19 August 2026

Privacy Policy · Chính sách quyền riêng tư

Mira is designed to collect as little data as possible in order to enable complete functionality. We never ask a customer for their name, age, birthday, or photo, and we show no advertising.
Mira được thiết kế để thu thập càng ít dữ liệu càng tốt mà vẫn đảm bảo đầy đủ chức năng. Chúng tôi không bao giờ hỏi khách hàng về tên, tuổi, ngày sinh hay ảnh, và không có quảng cáo.

1. What we collect

WhatWhy
email address
Địa chỉ email
To create and secure the account. You can also use Sign in with Apple, or play as a guest with no email at all.
Để tạo và bảo vệ tài khoản. Bạn cũng có thể dùng Đăng nhập bằng Apple, hoặc chơi với tư cách khách mà không cần email.
Learning & usage datawhich lessons were started and finished, which questions were answered and whether they were right, and how much time is spent in each part of the app
Dữ liệu học tập và sử dụng
How the curriculum works. Student progress throughout the app is recorded. Progress is collected for every account and is not optional.
Cách chương trình học vận hành. Tiến độ của học sinh trong toàn bộ ứng dụng đều được ghi lại. Tiến độ được thu thập cho mọi tài khoản và không phải tuỳ chọn.
A device identifier — a random code we generate on first launch
Mã thiết bị ngẫu nhiên
To limit an account to two devices and to anchor your free trial. The identifier is random, created by us, and is not your phone's serial number or advertising ID.
Để giới hạn mỗi tài khoản trên hai thiết bị và cố định thời gian dùng thử. Mã này ngẫu nhiên, do chúng tôi tạo, không phải số sê-ri của máy hay mã quảng cáo.
A display name you choose, if you play the games
Tên hiển thị bạn tự chọn
To show a score on the game leaderboard. This name is public — other Mira players can see it. Please choose a nickname, never a real name. See section 3.
Để hiển thị điểm trên bảng xếp hạng trò chơi. Tên này là công khai — người chơi Mira khác nhìn thấy được. Xin chọn biệt danh, đừng dùng tên thật. Xem mục 3.
Class & attendance data Attendance data is recorded for curriculum operation.
Dữ liệu lớp học và điểm danh. Dữ liệu điểm danh được ghi lại phục vụ việc vận hành chương trình học.
A teacher can take a register and follow the class's progress. See section 4.
Giáo viên có thể điểm danh và theo dõi tiến độ của lớp. Xem mục 4.
Anything you type into Feedback
Nội dung bạn gửi qua mục Góp ý
Feedback is used to answer your questions and fix bugs you report. Feedback reaches us exactly as you typed it, so please do not include personal details.
Góp ý được dùng để trả lời câu hỏi của bạn và sửa lỗi bạn báo. Nội dung góp ý đến với chúng tôi đúng như bạn đã gõ, nên xin đừng đưa thông tin cá nhân vào đó.
Purchase confirmation from Apple
Xác nhận thanh toán từ Apple
Apple handles the payment; we never see your card.
Apple xử lý thanh toán; chúng tôi không bao giờ nhìn thấy thẻ của bạn.

A child profile is an opaque, randomly generated identifier. We do not ask for, and cannot derive, a child's real-world identity from it — with the one exception of a display name a player types themselves (section 3).

2. What we do NOT collect

  • No child name, age, age range, gender, or date of birth
  • No phone number.
  • No contacts, photos, or location.
  • No advertising identifiers, no ad networks, no tracking across other apps or websites. Mira contains no third-party analytics or advertising software of any kind.

3. The game leaderboard and your display name

Mira's games have a leaderboard. If you or your child sets a display name, that name and the score are uploaded and shown to other Mira players. This is the only thing in Mira that is visible outside your own account.

Please use a nickname, not a real name. You can change or clear the display name at any time; playing the games without setting one is fine.

Tên hiển thị trên bảng xếp hạng là công khai — người chơi khác có thể nhìn thấy. Xin hãy dùng biệt danh, không dùng tên thật.

4. Mira Club — classes and teachers

Where a school or club uses Mira, a teacher scans a card to take a register. A teacher can see, for the children in their own class only: the display name on the account, attendance for a day, and learning progress. A teacher cannot see your email, your purchases, or any other class.

If your child is enrolled in a class, that is arranged through the school.

Giáo viên chỉ nhìn thấy học sinh trong lớp của mình: tên hiển thị, điểm danh và tiến độ học. Giáo viên không nhìn thấy email hay thông tin thanh toán của bạn. Việc đăng ký lớp cho bé được sắp xếp thông qua nhà trường.

5. Microphone & speech

Speaking exercises use the microphone to check pronunciation. Mira never stores or uploads the recording, and never uploads what was said or the score — the result stays on the device.

The recognition itself is done by Apple. Mira asks for on-device recognition wherever the device supports it. On a device that does not have Apple's offline speech model installed, Apple processes the audio on Apple's servers under Apple's privacy policy, not ours. The microphone is used only during a speaking exercise, and only after you grant permission.

6. Camera

The camera is used for scanning a Mira Club attendance card. Mira reads the code in the frame and keeps nothing else — no photo or video is saved or uploaded. If you never use Mira Club, the camera is never used.

Máy ảnh được dùng để quét thẻ điểm danh Mira Club. Mira chỉ đọc mã trong khung hình và không giữ lại gì khác — không có ảnh hay video nào được lưu hay tải lên. Nếu bạn không dùng Mira Club, máy ảnh không bao giờ được dùng.

7. How data is used, and who sees it

We use what we collect to run your account, deliver and pace the curriculum, show progress to you and (for a class) to your child's teacher, provide the leaderboard, answer your feedback, and fix and improve the app.

We do not sell data. We do not share it with anyone for their own purposes, and we run no advertising. The only parties that touch it are Apple (sign-in, payments, speech recognition) and our hosting provider, which stores it for us and does nothing else with it.

Chúng tôi không bán dữ liệu, không chia sẻ cho bất kỳ ai vì mục đích riêng của họ, và không chạy quảng cáo. Chỉ có Apple (đăng nhập, thanh toán, nhận diện giọng nói) và nhà cung cấp lưu trữ của chúng tôi chạm tới dữ liệu này — bên lưu trữ chỉ giữ hộ chúng tôi và không làm gì khác.

8. Where data is stored

Account, learning, and class data are stored with our backend provider. Access is protected by row-level security, so one account can only ever reach its own data, and a teacher only their own class.

Dữ liệu tài khoản, học tập và lớp học được lưu tại nhà cung cấp hạ tầng của chúng tôi. Quyền truy cập được bảo vệ ở mức từng dòng dữ liệu, nên mỗi tài khoản chỉ chạm được dữ liệu của chính mình, và giáo viên chỉ chạm được lớp của mình.

9. How long we keep it — our retention policy

We keep children's data only as long as is reasonably necessary for the purpose it was collected for. We never keep it indefinitely.

DataWhy we need to keep itDeleted
Learning & usage data, child profile identifier This is the child's place in the curriculum — without it the app cannot know what has been taught or what to teach next. When the account is deleted, or after 24 months of no sign-in, whichever comes first.
Parent email, account record To let the parent sign in and recover the account. Immediately on account deletion.
Device identifier To enforce the two-device limit and anchor the free trial. On account deletion.
Display name & leaderboard score To show the leaderboard. When you clear the name, or on account deletion.
Class & attendance records School has the register for the school year. When you leave the class.
Feedback messages To answer you and fix what you reported. Within 12 months of the issue being closed.
Speech audio Not retained at all — scored in the moment. Immediately, and never uploaded to Mira.

When data reaches the end of these periods we delete it, and we take reasonable measures to protect it during deletion. We keep no archived copy or backup of a deleted account for later recovery.

10. Your choices & rights

  • Decide before you begin. Learning and usage data are part of the service, so there is no switch to turn them off. Your choice is made at the start: if you do not accept this policy, do not create an account.
  • Play as a guest. Guest accounts give us no email at all.
  • Change or clear your display name at any time, which removes it from the leaderboard.
  • Leave a class at any time, which stops a teacher seeing your child's progress.
  • Delete your account at any time in Settings → Data rights. Deletion is permanent: your email and the data associated with the account are removed from our servers, with no recovery period. This is how you withdraw data you have already given us.
  • Ask us anything about your data — including for a copy of it, or for it to be corrected — by emailing support@mirastudios.io. We will respond within 30 days.
  • Read these documents again at any time in Settings → Legal. If we change what we collect, we will ask you to accept the updated policy before you continue.

11. Children's privacy

Mira is meant for young children and must be set up and managed by a parent or guardian. We never ask a child for their name, age, birthday, gender, or photo, and we do not knowingly let a child give us any of those.

We do, however, collect information that children's privacy laws treat as personal: a random identifier for the child's profile and device, the record of their learning, and — if one is set — the display name shown on the game leaderboard. We are describing this plainly rather than claiming we collect nothing.

How we use persistent identifiers. The profile and device identifiers are used only to run the service: to keep you signed in, to place your child at the right point in the curriculum, to show progress to you and to your child's teacher if they are in a class, to enforce the two-device limit, and to keep the service secure. We do not use them to build advertising profiles, to serve behavioural advertising, or to track your child across other companies' apps or websites — Mira contains no advertising or third-party tracking software.

Parents are in control. A parent may at any time review the information held about their child, ask us to correct it, refuse to let us collect any more of it, and have it deleted — by using Settings → Data rights in the app, or by emailing support@mirastudios.io. Because the learning record is what makes the curriculum work, refusing further collection means closing the account; we will do that for you on request.

Schools. Where a school or club enrols a class in Mira Club, the school is responsible for telling parents and for obtaining any consent required in its country before enrolling a child. A teacher's access is limited to their own class and to what section 4 describes.

We aim to meet the standards of the U.S. Children's Online Privacy Protection Act (COPPA), Vietnam's personal data protection rules, and comparable child-privacy laws in the places Mira is used. If you believe we have fallen short, or you want something removed, write to us at support@mirastudios.io and we will act on it.

Mira dành cho trẻ nhỏ và phải do phụ huynh thiết lập và quản lý. Chúng tôi không bao giờ hỏi tên, tuổi, ngày sinh hay ảnh của trẻ. Phụ huynh có thể xem, sửa, ngừng thu thập hoặc xoá dữ liệu của con mình bất cứ lúc nào.

12. Changes to this policy

If we change what we collect or how we use it, we will update this page, change the date at the top, and ask you to read and accept the new version in the app before you carry on using it.

13. Who we are, and how to reach us

Mira is operated by Mira Studios, which is the sole operator of the app and the controller of the data described here.

Questions, requests, or complaints about privacy — including a request to review, correct, or delete your child's information — go to that email address, and we will respond within 30 days.

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