KAIMEIDO
JA 日本語 / EN English

MENKO

Privacy Policy

2026-08-23

This English text is provided for convenience. The Japanese version is the authoritative text; if the two differ, the Japanese version prevails.

KAIMEIDO (the “Operator”) sets out below how it handles your information in the application “MENKO | Japanese Card Flip” (the “App”).

1. Information we collect

The Operator collects the following information when you use the App.

(1) An identifier issued automatically by the App

We do not ask for your name, email address, telephone number, or postal address. This identifier is a string created automatically the first time you launch the App.

(2) Your usage

The Menko you hold, your Points balance, the number of Maker Tickets you hold, and the tags you select when creating an Original Menko.

(3) Payment information

The transaction identifier issued by the app store, the product name, the amount, and the date. ※ The Operator does not collect credit card numbers or other payment method details. These are handled by the app store.

(4) If you link an account

An identifier provided to the Operator by Apple or Google. ※ The Operator does not collect the name or email address registered with the linked account.

(5) If you receive notifications

Your device’s notification token. ※ Your device’s operating system asks for permission to send you notifications.

(6) In connection with advertising

Advertising providers may collect an advertising identifier and other information (see section 4).

On iOS, the operating system asks whether the advertising identifier may be used. If you choose “Ask App Not to Track”, ads still play and you still earn points; the ads simply stop being tailored to your interests. You can change this choice at any time in the device Settings.

2. Purposes of use

We use the information we collect for the following purposes.

  1. Providing the Service and storing your data
  2. Confirming purchases of Maker Tickets and preventing improper use
  3. Generating Original Menko
  4. Notifying you that generation of a Menko has finished
  5. Responding to enquiries
  6. Improving the Service
  7. Responding as required by law

3. Provision to third parties

The Operator does not provide your information to third parties except in the following cases.

  1. Where you have consented
  2. Where required by law
  3. Where necessary to protect a person’s life, body, or property and it is difficult to obtain your consent

4. Transmission to external services

In providing the Service, we send information to the following external services.

(1) The generative AI provider

We send the tags you select in order to create an Original Menko. ※ We do not send information that identifies you.

(2) The advertising provider (Google AdMob)

An advertising identifier and other information may be collected in order to display advertising, to prevent fraud, and to tailor advertising to your interests. Handling of that information is governed by that provider’s own rules.

The advertising identifier may be combined with information held by other companies for advertising purposes. On iOS, the operating system asks whether this may be done, and if you choose “Ask App Not to Track”, the advertising identifier is not collected.

(3) The push notification provider (Google Firebase Cloud Messaging)

We send your notification token in order to deliver notifications.

(4) The app stores (Apple App Store / Google Play)

For processing and confirming payment.

5. Retention period

  1. We retain your data while you use the App, and for three months after you unlink your account.

  2. After three months, the data is deleted and cannot be recovered.

  3. Notwithstanding the preceding two paragraphs, we retain the following for ten years as required by law.

    • The app store transaction ID, the amount paid, the payment date, and the product name
    • An identifier converted into a form that does not directly identify you

    This identifier is produced from your information by a one-way computation, and you cannot be identified from it.

6. Deletion by you

  1. When you unlink your account, the deletion process described in 5.(1) above begins.
  2. If you delete the App from your device, the information stored on that device is lost.

※ If you have not linked an account, the Operator has no means of identifying you, and your data cannot be recovered.

7. Requests for disclosure and similar

You may request that the Operator disclose, correct, suspend the use of, or delete your information. Please contact the point of contact below.

※ We may ask you to verify your identity when making such a request.

8. Security management

The Operator takes necessary and appropriate measures, including encryption of communications, to prevent the leakage, loss, or damage of the information it collects.

9. Changes to this Policy

The Operator may change this Policy. Where a change is significant, we will give notice within the App or by other means.

10. Contact

KAIMEIDO　support@kaimeido.net