Minpa Privacy Policy

Terms of Use / 日本語

This is an English translation for reference. If it differs from the Japanese text, the Japanese text prevails.

Enacted: November 15, 2026

The operator of "Minpa: Party Games for Everyone", an individual operating under the name Natsumio Studio (the "Operator"), handles users' information in the app "Minpa" (which contains the three games TOP3, Soratori, and Rokusara, and Party Mode) and related web pages (the "Service") as follows, in accordance with the Act on the Protection of Personal Information of Japan and other laws.

1. Information we collect

• Anonymous account information: When you use the online features (rooms, parties, and TOP3 quizzes), an identifier issued automatically for each device through Firebase Authentication's anonymous sign-in, a random user ID created by the Operator's server based on it (together, the "identifier"), and the dates and times of creation and last use. We do not ask you to register your name, email address, or phone number. An anonymous account is an account that needs no contact details; the same identifier links your actions in rooms and your answers to quizzes.
• Information you enter or send: Display name (banned words are not allowed), icon (a number chosen from prepared pictures), room password (ai-kotoba), custom topics and options, ranking answers and guesses, comments, reactions, preset stamps (Soratori and Rokusara; 6 kinds), game actions (the cards, plates, tea, and lanes you choose, and so on), and reports.
• Room and party information: Room settings and progress, participants' identifiers, display names, and icons, the host, removed participants, each seat's score and results, answer status, participants' connection status, and the game state (each participant's hand can be read only by that participant, and the full state of the match is handled only by the server). For parties: the members, the order of games to play (Tonight's Set), and the ranking and overall points for each game.
• Quiz information (TOP3): The content of the quiz and its correct answers, the identifiers, display names, icons, guesses, and comments of people who answered, and dates and times. As a record of opening: the quiz code, the identifier of the person who opened it, and the date and time.
• Notification information (TOP3): If you allow notifications, the device's address for telling you an answer has arrived (a push notification token), language, and OS type. Notifications are sent through the service of Expo (650 Industries, Inc., United States).
• Report information: The identifiers of the reporter and the reported user, the reported user's display name, the situation such as the room or quiz concerned, and the date and time.
• Records to prevent abuse: Counts and times per user ID or per IP address, used to count creations, joins, connections, and actions in rooms and parties. They are deleted automatically within a few hours of last use.
• Technical information: The IP address, date and time, accessed path, error logs, and similar data that servers (Cloudflare) record automatically for communication. Identifiers issued per app installation (the Google Analytics app instance ID and the Firebase installation ID), device model, OS version, app version, language, and the approximate region estimated from the IP address (sent to external services as shown in the table below).
• Inquiry information: The contact details and content you enter when contacting us.

Your name and icon settings, solo play content, records of CPU matches and daily challenges, rating, match history, your answer album, custom topics, list of blocked users, settings, and the code of the last party you joined (for 6 hours) are stored on your device. However, if you enable a custom topic pack in an online room, the set of custom topics saved on your device is sent to the server. When you create a TOP3 quiz link, the topics you chose are sent. Edits or deletions on your device are not reflected in content already sent.

After you agree to the Terms of Use, the Service collects usage (screens opened; game start and end, number of players, rounds, and ranking; actions such as sharing) with Google Analytics for Firebase, and crash information (device model, OS, app version, error details) with Firebase Crashlytics. Firebase App Check verifies that traffic comes from the genuine app. Settings such as maintenance and contact details are fetched from the Operator's server (Cloudflare). Names, room passwords, identifiers, and the content of topics and answers are not sent to these. We do not use advertising or advertising IDs. There are no purchases. We use Expo's service to check for app updates. The information sent to external services is summarized in the table below.

Transmission of information to external parties (disclosure under Article 27-12 of the Telecommunications Business Act of Japan)

The app sends the following information from your device to the following external services. The recipients handle the information for the Operator, on the Operator's instructions, under each company's terms. Date confirmed: November 15, 2026.

Google Analytics and Crashlytics do not start before you agree on the consent screen. Even after you agree, you can stop further sending by turning off the usage and error data switch in the app's settings. Sending to Cloudflare, Firebase Authentication, and App Check is necessary to provide the online features, and does not happen when you do not use them (solo play, CPU matches, and so on). However, settings such as maintenance and contact details are fetched from peekooo-platform when a game screen opens.

2. Purposes of use

1. To provide the Service (creating rooms, parties, and quizzes, matches, showing results, notifications, etc.)
2. To prevent fraud and nuisance behavior and to respond to reports
3. To investigate bugs and to maintain and improve the Service
4. To respond to inquiries
5. To comply with laws

3. Retention

• Rokusara and Soratori room information (including hands and match state): becomes unavailable 6 hours after the last update and is deleted automatically from the server.
• TOP3 room information: becomes unavailable about 24 hours after creation (this may be extended, for example by playing again) and is deleted automatically from the server.
• Party information (members, order, results for each game, and overall points): becomes unavailable 6 hours after the last operation and is deleted automatically from the server.
• Deleting expired rooms and parties may be slightly delayed for processing reasons.
• Quizzes, their answers, and records of opening: a quiz stops accepting new answers 7 days after creation. For 90 days after that, the quiz owner and users who answered can see the results. 90 days after the quiz stops accepting answers, it is deleted automatically from the server together with its answers, records of opening, and withdrawal marks.
• Notification addresses: kept until you delete them or until notifications can no longer be delivered. The record used to space notifications to the same quiz owner is deleted after one day.
• Counts for preventing abuse (per user ID or per IP address): deleted automatically within a few hours of last use (counts of notifications within 2 days).
• Anonymous accounts: kept while necessary to provide the Service or until the user deletes them. Even after deletion, a record containing only the user ID and the time of deletion remains.
• Inquiry information: kept while necessary to respond.
• Report information: kept while necessary for handling and preventing abuse. It may remain even if you delete your data in the app.
• Technical logs and measurement data: deleted after a certain period according to each service's settings and the retention policies of Cloudflare and Google.

4. Outsourcing and handling in foreign countries

The Operator uses services of Cloudflare, Inc. (United States) for the Service's servers, database, and delivery of settings and web pages; Firebase and Google services of Google LLC (United States) for authentication, measurement, crash collection, and receiving inquiries; and services of 650 Industries, Inc. (Expo, United States) for sending notifications and delivering app updates, and entrusts the handling of information to those companies. Cloudflare's servers run in data centers around the world, so information may be processed in Japan, the United States, and other countries. The Operator uses these services under each company's terms that set out personal information protection measures, which can be reviewed in the Cloudflare Privacy Policy, the Google Privacy Policy, Privacy and Security in Firebase, and the Expo Privacy Policy. We will provide necessary information about handling in foreign countries on request. Each country's personal information protection system can be checked on the Personal Information Protection Commission page (Japanese).

5. Provision to third parties

The Operator does not provide users' personal information to third parties except in the following cases. We do not sell it to third parties.

1. With the user's consent
2. When required by law or otherwise permitted by law
3. In the case of the outsourcing in section 4, and in connection with a business succession (including moving the operator from an individual to a company)

Note that, by the nature of the game, your display name, icon, comments, reactions, stamps, each seat's score, answers and guesses, and your anonymous identifier are visible to the other participants in the same room or party. Party members can also see the ranking and overall points for each game. The topics of a TOP3 quiz, the quiz owner's display name and icon, and comments can be seen by anyone who knows the link or code. The correct answers can be seen by the quiz owner and by people who have confirmed their answers. When you answer, your display name, icon, and guesses are shown to the quiz owner and to others who have answered. You can turn a result into an image and send it through the OS share sheet, but the Operator does not receive shared images.

6. Security

The Operator takes reasonable measures to prevent leakage and misuse of information, such as encrypted communication and access restrictions (for example, a hand can be read only by its owner, correct answers only by the quiz owner and people who have confirmed their answers, and a room's state only by its participants). However, complete security of communication and storage over the Internet cannot be guaranteed.

7. Children

The Service is intended for people aged 13 and over. People under 13 may not use it. It is designed so that you can play without providing your name or contact details, but users under 18 should use it with the consent of a parent or guardian, and should not write their real name, address, school name, or similar in their display name, comments, or custom topics.

8. Requests for disclosure, correction, deletion, etc.

In accordance with law, users may request disclosure, correction, suspension of use, or deletion of their information held by the Operator. Please contact us at the address below. Because the Service can be used anonymously, we may ask you to show information inside the app to confirm your identity. We may be unable to respond if identity cannot be confirmed or the information has already been deleted. The Operator's name and address will be disclosed without delay on request.

9. Changes

The Operator may change this Policy as necessary. Depending on the change, we will take the procedures required by law, such as notice on this page or in the app.

Deleting your data

In the app, open "Settings" in any game and choose "Delete data" (it works the same from any game's settings) to delete the following.

• On the server: leaving the parties and rooms you are in (your row in a party's results is also removed); the quizzes you created, their answers, and records of opening; your answers to other people's quizzes and the records of opening them (only a withdrawal mark, which prevents answering again, remains); your notification address; and your anonymous account (the Firebase anonymous account used for sign-in and the information tied to your user ID on the server).
• On your device: for all games, your name and icon, records, custom topics, list of blocked users, settings, and the party you are in. The result is the same whichever game's settings you use.

If communication fails, nothing is erased so that you can try again. Stopping use, which amounts to withdrawing consent, can also be done with this operation and by deleting the app.

The record of your consent remains on your device. The following are not removed by this operation: report information (kept for handling and preventing abuse); counts for preventing abuse (deleted automatically within a few hours); the record containing only your user ID and the time of deletion; and technical logs and Google Analytics and Crashlytics measurement data (not tied to your identifier, and deleted under each company's retention policy), as described in section 3. Match records and screen copies saved on other users' devices, and images you shared, cannot be deleted. To request their deletion, or if you cannot use the app, contact us at the address below.

Contact

Minpa Operator (Natsumio Studio) Contact form (Japanese and English are both fine)