MindMatch Web Privacy Policy
Effective date: October 9, 2026
This policy describes how information is handled on the website "MindMatch" (https://ishindenshin.app, the "Service"). For the iPhone and iPad app, please see the privacy policy inside the app.
1. Information the developer receives
The Service requires no account. The developer does not receive names, email addresses, or location. No analytics tools or advertising are used.
2. Playing on one device
In "Play on One Device," your drawings, image choices, nicknames, and scores are handled only inside your browser and are never sent to the developer's servers. Nicknames are used only for the current game and are not saved.
3. Playing on your own phones (rooms)
In "Each on your own phone," the following information is temporarily kept on the room server (Cloudflare) so that results can be shown to the players in the same room:
- the name you use in the room
- the coordinates and timing of your drawings, your image choices, and response times
- scores and the progress of the game
Answers are not sent to other players until everyone has answered. Room data is deleted 6 hours after the room was last used, or 24 hours after it was created. The developer does not use this data for analytics or advertising.
To keep the service secure and prevent abuse, the server temporarily handles the IP address of each connection. When counting requests, it replaces the address with a code that changes daily and does not store the IP address itself.
4. Data stored on your device
Your browser stores your sound setting, a record of recently played prompts (so the same questions don't repeat), the name you used in a room, and a seat key for returning to a room. Drawings and image choices are not stored. Clearing your browser's site data removes them.
5. Sharing
Result text, images, and videos are shared only when you choose to share them. Nothing is posted or sent automatically. Shared images and videos may contain players' names. Result links contain only the report type and score, never drawings or answers. The receiving service's terms and privacy policy apply to data you share.
6. External services
The Service is delivered, and its rooms are hosted, using Cloudflare. Some pages use Google Fonts to display text.
7. About the Sync Report and image-choice commentary
The Service's reports and commentary are entertainment, selected from texts written in advance. They are not scientific or medical judgments of relationships or personality, and no data is sent to external generative AI.
8. Children's privacy
The Service requires no account. If a child uses the Service, a parent or guardian should review it first.
9. Changes to this policy
If this policy changes, this page will be updated.
10. Contact
medixmatch2025@gmail.com
iPhone and iPad app
MindMatch Privacy Policy
Effective date: October 4, 2026
This policy describes how information is handled in the app "MindMatch" (the "App").
1. Information the developer collects
The App has no developer-operated servers. The developer does not receive or store play data, names, email addresses, or location from the App. No analytics tools or advertising SDKs are used.
2. Data the App handles
- Stroke data (coordinates and timing of your drawings)
- Image choices and response times
- Scores such as sync rates, and play history
These are used only to compute sync rates, show results to your partner, and store history on your device. Nicknames entered for one-device play are used only for on-screen display during that game. These data are never sent to external AI services or to the developer.
3. Communication when playing on two devices
In "Play on Two Devices" mode, answer data is exchanged with your partner through Apple's Game Center (GameKit). Your Game Center display name is shown to your partner. Use of Game Center is subject to Apple's privacy policy and terms. The developer does not receive or store this communication.
4. Data stored on your device
Play history and preferences such as sound settings are stored on your device. In one-device play, nicknames are used only for the current game; they aren’t saved for the next game or included in history. Nicknames saved by older versions are deleted at app launch. The App has no cloud sync of its own, but stored data may be included in iCloud or computer backups according to your device settings. Deleting the App deletes the history on that device.
Videos exported for sharing are temporary files. They are deleted when sharing completes or is canceled, or when you leave the game. If sharing is in progress, deletion waits until it finishes. Temporary videos left behind by an interrupted session are deleted the next time the App starts.
5. Sharing
Result text, images, and videos are shared only when you choose to share them. Nothing is posted or sent automatically. Shared videos may contain players’ names. Copies you save to a sharing destination remain after the App deletes its temporary file. The receiving service's terms and privacy policy apply to data you share.
6. About the Sync Report and image-choice commentary
The App's reports are entertainment, selected on-device from texts bundled with the App. They do not scientifically or medically evaluate relationships or personality, and no data is sent to external generative AI at runtime.
7. Children's privacy
Playing on one device requires no account for the App. Two-device play requires signing in to Game Center and is subject to Apple's age requirements and parental restrictions. For children, review the App Store age rating and the device's parental controls.
8. Changes to this policy
If this policy changes, the in-app text will be updated.
9. Contact
medixmatch2025@gmail.com