Paper Soccer - Mobile Strategy Game
Last Updated: October 21, 2026
Effective Date: February 25, 2026
Mateusz Krasniewski ("we", "us", "our") operates the Paper Soccer mobile application (the "App"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our App. Please read this policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.
| Data Type | Details | Purpose |
|---|---|---|
| Username | A display name you choose (3-20 characters, alphanumeric) | Identify you in multiplayer games and leaderboards |
The App may offer the option to sign in using third-party providers such as Facebook or Google. If you choose to use social login:
| Data Type | Details | Purpose |
|---|---|---|
| User ID | A randomly generated unique identifier (UUID) created when you first use the App | Associate your profile, game history, and ratings |
| Gameplay Data | Game moves, match results, win/loss records, ELO rating, win streaks | Provide game functionality, rankings, replays, and match history |
| Authentication Tokens | Session tokens for maintaining your login state | Keep you signed in between sessions |
We do not collect:
We use the collected information for the following purposes:
Under the General Data Protection Regulation (GDPR), we process your personal data based on the following legal grounds:
| Legal Basis | Data Processed |
|---|---|
| Contract Performance (Art. 6(1)(b)) | User ID, username, gameplay data - necessary to provide the game service you requested |
| Legitimate Interest (Art. 6(1)(f)) | Aggregated gameplay statistics - to maintain fair play, detect abuse, and improve the App |
We use the following third-party services to operate the App:
| Provider | Purpose | Data Shared | Location |
|---|---|---|---|
| Supabase Inc. | Backend infrastructure: database hosting, user authentication, real-time multiplayer | User ID, username, gameplay data, authentication tokens | AWS (EU/US regions) |
| RevenueCat, Inc. | Validating Pro purchases and managing the Pro entitlement | Account ID, purchase history and store receipts, device platform, app version | United States |
Supabase acts as a data processor on our behalf and is bound by a Data Processing Agreement (DPA) in compliance with GDPR. Supabase is SOC 2 Type II certified.
RevenueCat, Inc. acts as a data processor on our behalf to validate your Pro purchases and manage your Pro entitlement. See RevenueCat's Privacy Policy for details.
Apple and Google process the payment for your Pro purchase directly; we never see or store your payment card details. Payment processing is governed by Apple's and Google's own privacy policies.
When you play multiplayer games, the following information is visible to your opponent:
You have the right to:
In addition to the above, under the GDPR you have the right to:
If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA):
To exercise any of the above rights, contact us at: mateusz.krasniewski19@gmail.com
We will respond to your request within 30 days (or within the timeframe required by applicable law).
You can delete your account at any time from your Profile screen within the App. When you delete your account:
You may also request account deletion by emailing mateusz.krasniewski19@gmail.com.
We implement appropriate technical and organizational measures to protect your data:
Paper Soccer is not directed to children under the age of 13 (or under 16 in the EU/EEA). We do not knowingly collect personal information from children under these ages.
If you are a parent or guardian and believe your child has provided us with personal information, please contact us at mateusz.krasniewski19@gmail.com, and we will take steps to delete such information.
Paper Soccer includes an AI opponent powered by an on-device machine learning model (ONNX Runtime). This AI:
Your data may be processed on servers located outside your country of residence (including the United States) through our use of Supabase and RevenueCat. Where data is transferred outside the EU/EEA, we ensure adequate safeguards are in place, including:
Paper Soccer does not track you.
We do not use any advertising SDKs, analytics trackers, or cross-app tracking technologies. We do not participate in the Apple App Tracking Transparency framework because we have nothing to track. Our iOS Privacy Manifest (PrivacyInfo.xcprivacy) declares NSPrivacyTracking: false and no collected data types.
We may update this Privacy Policy from time to time. When we make changes, we will:
Your continued use of the App after changes are posted constitutes your acceptance of the updated policy.
The data controller responsible for your personal data is:
Mateusz Krasniewski
Email: mateusz.krasniewski19@gmail.com
Country: Poland
If you have any questions about this Privacy Policy or our data practices, please contact us at: