KnowScore

Privacy Policy

App: KnowScore  ·  Last updated: 5 November 2026  ·  Developer: Sergei Soldatov  ·  Portugal, EU

This Privacy Policy explains how KnowScore ("we", "our", or "the app") collects, uses, and protects your personal information when you use our mobile application on iOS and Android. By using KnowScore you agree to the practices described below.

As the developer is based in Portugal (European Union), this policy complies with the General Data Protection Regulation (GDPR).


1. Information We Collect

Information you provide:

  • Email address — when you create an account or sign in with Google or Apple.
  • Display name — optionally set in your profile.
  • Team follows — the sports teams you choose to follow inside the app.

Information collected automatically:

  • Push notification token — a device token generated by Apple (APNs) or Google (FCM) if you grant notification permission. Used only to deliver match alerts you have opted into.
  • Subscription status — whether you are on the Free or Premium plan, managed via RevenueCat.
  • App usage data — which matches and features you interact with, stored to personalise your experience.

Information we do NOT collect:

  • We do not collect your precise location.
  • We do not access your contacts, photos, camera, or microphone.
  • We do not sell your data to third parties.
  • We do not use your data for advertising profiling.

2. How We Use Your Information

PurposeLegal basis (GDPR)
Creating and managing your accountPerformance of a contract (Art. 6(1)(b))
Delivering AI-generated match predictions and analysisPerformance of a contract (Art. 6(1)(b))
Processing in-app purchases and subscriptionsPerformance of a contract (Art. 6(1)(b))
Sending push notifications you have opted intoConsent (Art. 6(1)(a))
Improving the app and fixing bugsLegitimate interests (Art. 6(1)(f))
Complying with legal obligationsLegal obligation (Art. 6(1)(c))

3. Third-Party Services

KnowScore uses the following third-party services, each of which processes data under its own privacy policy.

ServicePurposeData sharedPrivacy policy
Supabase Authentication and database Email, display name, team follows, session tokens supabase.com/privacy
RevenueCat In-app purchase and subscription management User ID, purchase receipts, subscription status revenuecat.com/privacy
Anthropic (Claude API) Generating AI match predictions and analysis Match data only (team names, statistics) — no personal data sent anthropic.com/privacy
API-Sports (api-football) Live and historical sports data No personal data — only match and team queries api-sports.io
Apple Sign In / Google Sign In Optional social authentication Email and name (only if you choose this sign-in method) Apple  ·  Google
Apple APNs / Google FCM Delivering push notifications Device push token (only if you enable notifications) Apple  ·  Google
Resend Sending account confirmation and other service emails Your email address and the content of the email (such as your confirmation link) resend.com/legal/privacy-policy
BallDontLie API Player injury data for World Cup participants No personal data — only player name and team queries balldontlie.io

Where data is transferred outside the EU (e.g. to US-based providers), such transfers are covered by Standard Contractual Clauses (SCCs) or equivalent safeguards as required by GDPR.

Website. The website knowscore.app is served by Cloudflare. It does not set cookies. We measure aggregate traffic (page views, countries, referrers and device types) with Cloudflare Web Analytics, which does not use cookies and does not track individual visitors across websites. Cloudflare may also process technical data such as IP addresses to deliver and protect the site (see cloudflare.com/privacypolicy).


4. Data Retention

  • Account data — retained while your account is active. Deleted within 30 days of account deletion.
  • Push tokens — deleted when you revoke notification permission or delete your account.
  • Purchase records — retained as required by applicable tax and accounting law (typically 7 years in Portugal).

5. Your Rights under GDPR

As an EU resident you have the right to:

  • Access — request a copy of the personal data we hold about you.
  • Rectification — ask us to correct inaccurate data.
  • Erasure — request deletion of your account and personal data ("right to be forgotten").
  • Restriction — ask us to restrict processing in certain circumstances.
  • Portability — receive your data in a structured, machine-readable format.
  • Objection — object to processing based on legitimate interests.
  • Withdraw consent — withdraw consent for push notifications at any time in your device settings.

To exercise any of these rights, email solev.studio@gmail.com. We will respond within 30 days. You also have the right to lodge a complaint with the Portuguese data protection authority: CNPD (cnpd.pt).


6. Data Security

We apply appropriate technical and organisational measures to protect your data:

  • All data transmission is encrypted via HTTPS/TLS.
  • Authentication tokens are stored in device secure storage (iOS Keychain / Android Keystore).
  • Our database uses Row-Level Security (RLS) — users can only access their own data.
  • No API keys or service credentials are included in the app binary.

7. Children's Privacy

KnowScore is not directed at children under 13 (or under 16 in the EU). We do not knowingly collect personal data from children. If you believe a child has provided us with personal data, please contact us and we will delete it promptly.


8. Account & Data Deletion

You can delete your account and all associated personal data at any time, directly in the app.

How to delete your account:

  • In the app: go to Profile → Delete Account, and confirm. Your account is deleted immediately.
  • By email (alternative): send a request to solev.studio@gmail.com with the subject line "Account Deletion Request" and include the email address associated with your account.

Deletion removes: your account credentials, display name, team follows, push notification token, and any usage data linked to your account. Purchase records may be retained as required by applicable tax law (typically 7 years in Portugal).


9. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, the "Last updated" date at the top of this page will be revised. For significant changes we will notify you via the app or by email. Continued use of KnowScore after changes are posted constitutes acceptance of the updated policy.


10. Contact