Privacy Policy
App: Futsal Flow - AI Tactics Board (the "App")
Developer: FGEM App
Established: October 15, 2026 / Last updated: October 31, 2026 (English version added)
This policy explains how the App handles information about its users. If this English version differs from the Japanese version, the Japanese version prevails.
1. Data you create and enter
The data you create and enter in the App (flows, meaning the players' starting positions, actions, drawings and defender moves, and their names; team names; players' names and numbers; saved starting positions and set-piece defenses; and settings) is stored only in a database on your device. It is never sent or uploaded to the developer's or any third party's servers.
When you choose to share, however, the App passes the following to the app you choose (a messaging app, email and so on; see section 5):
- "Share video" and "Share image": a video or image of the flow playing or of its positions. It shows the flow's name and the names and numbers of the players assigned to the pieces.
- "Export file": a file describing the flow. It contains the flow's name, the names and numbers of the players assigned to the pieces, and the team colors.
Videos, images and files are made temporarily on your device for sharing and are deleted the next time you share. You choose where they go; the App never sends them to the developer. When you open a file received from someone else in the App, its contents are saved on your device as a new flow.
The App needs no account or sign-in and has no cloud sync.
2. Information collected and why
To improve the App, fix problems, show ads and manage purchases, the App uses the third-party services below, which may collect information.
| Service | Main information collected | Purpose |
|---|---|---|
| Google Analytics for Firebase (Google) | How the App is used (app launches and time used; tutorials started and finished; flows made; actions added, with their kind such as pass or dribble and how many; playback; drawing tools; the court view; how defenders are moved and the AI defense settings; how often videos, images and files are shared, their format, the video length and the time taken to make them; how many files are imported; ad and purchase actions), app instance ID, advertising ID, device model and OS version, approximate region | Usage analysis and improving the App |
| Firebase Crashlytics (Google) | Details of errors and crashes in the App and where in the code they happened, the device model, OS version and state at the time (free memory, orientation and so on), the App's version, the Crashlytics installation ID, the app instance ID (the same as for Google Analytics for Firebase above), and recent actions in the App (the same items as for Google Analytics for Firebase above) | Investigating and fixing problems |
| Google AdMob (Google) | Advertising ID, IP address (approximate location), ad views and interactions, device information | Serving ads, measuring them and preventing fraud |
| RevenueCat (RevenueCat, Inc.; iOS only) | An anonymous user ID issued by RevenueCat, records of App Store purchases, device model and OS version, IP address | Managing in-app purchases and restoring them |
This information does not include the data in section 1 (flow names and contents, team names, players' names and numbers, or text in drawings). The App does not collect information that directly identifies you, such as your name or email address.
For how each service handles information, see:
- Google Privacy Policy: https://policies.google.com/privacy
- How Google uses information from sites or apps that use its services: https://policies.google.com/technologies/partner-sites
- Firebase privacy and security: https://firebase.google.com/support/privacy
- RevenueCat Privacy Policy: https://www.revenuecat.com/privacy
3. Ads
The App is free and shows ads from Google AdMob (a banner at the bottom of the screen, full-screen ads while a video is being made or before sharing, and video ads you choose to watch).
In the European Economic Area (EEA), the UK and some other regions, the App asks for your consent to the use of information for ads. You can change it in the App under "Settings" → "Ad privacy settings".
On iOS, the App asks through the system prompt (App Tracking Transparency) whether it may use your advertising ID for ads. You can use the App as it is even if you do not allow it.
In your device settings ("Tracking" on iOS, Google ad settings on Android) you can reset your advertising ID or turn off personalized ads.
4. Permissions
The App does not ask for access to the camera, microphone, location, contacts or photos. To import files it uses the system file picker, and the App receives only the files you choose.
The App uses the internet only to show ads, to send the analytics in section 2 and for in-app purchases on iOS. Making, playing and saving flows work without an internet connection.
5. System features
The App uses the share feature provided by iOS / Android to share videos, images and files, and the system review feature when asking you to rate the App. These features are provided by Apple / Google, and the information involved is handled under each OS provider's privacy policy; information in the app you share to is handled under that app provider's privacy policy.
In-app purchases on iOS are paid through Apple's App Store. Neither the App nor the developer receives your payment information (such as card numbers).
6. Storing and deleting data
You can delete flows in "My flows" and teams and players under "Settings" → "Teams" in the App.
Uninstalling the App deletes the data stored on your device. If the data is included in a system backup (iCloud Backup or Google backup), restoring it may bring the data back.
To ask for information collected by the third-party services in section 2 to be deleted, please contact us at the address below.
7. Children
The App is not directed at children under 13.
8. Changes to this policy
We may change this policy when needed. Important changes will be announced on this page.
9. Contact
Questions about this policy or the App: fgem.apps@gmail.com
An email written with "Contact us" in the App's settings already contains, to help investigate problems, the App's version, the device model, the OS version and an ID (the Google Analytics for Firebase app instance ID in section 2); you can check or delete them before sending. The ID is used to look up records of errors and crashes related to your inquiry. Email addresses and messages we receive are used only to answer your inquiry and improve the App, and are not given to third parties.