Polish Rivals

Learn Polish. Compete. Win.

Privacy Policy

Last updated: April 15, 2026

1. Introduction

This Privacy Policy describes how Polish Rivals ("we", "us", or "our") collects, uses, and protects your personal information when you use our mobile application ("App"). By using the App, you agree to the collection and use of information in accordance with this policy.

2. Information We Collect

2.1. Account Information
When you create an account, we collect:

  • Your name (display name)
  • Email address
  • Password (stored securely by Firebase Authentication)

2.2. Usage Data
We automatically collect information about how you use the App:

  • Words studied and learning progress
  • Battle results and scores
  • Daily activity streaks
  • Friends list and interactions

2.3. Device Information
We may collect:

  • Device type and operating system
  • Language preferences
  • App version

2.4. Subscriptions and purchases
When you buy or restore a subscription or other in-app purchase:

  • Apple or Google processes payment; we do not receive your full payment card number.
  • We use RevenueCat, Inc. (“RevenueCat”) to validate subscriptions, sync entitlements across devices, and analyze subscription-related metrics. RevenueCat may receive: your app user identifier (linked to your account), product identifiers, subscription status, purchase or renewal dates, store transaction identifiers, and device or app information needed to provide its service.
  • Apple or Google may share limited receipt or transaction data with us or RevenueCat according to their policies.
  • Local counts (for example, daily study session limits for non-subscribers) may be stored on your device to enforce free-tier rules.

RevenueCat’s privacy policy: https://www.revenuecat.com/privacy

3. How We Use Your Information

We use the collected information to:

  • Provide and maintain the App
  • Create and manage your user account
  • Enable competitive features (battles, rankings, points)
  • Track your learning progress
  • Enable social features (friends, challenges)
  • Send email verification and important account notifications
  • Improve the App and user experience
  • Provide personalized content
  • Operate subscription and Premium access (including through RevenueCat)

4. Advertising

4.1. The App uses third-party advertising services to display ads. These services may collect and use certain information about your device and usage patterns to provide targeted advertisements.

4.2. Advertising partners may use:

  • Device identifiers (e.g., Advertising ID)
  • IP address
  • General location data (country/region level)
  • App usage information
  • Device information (type, OS, screen size)

4.3. You may opt out of personalized advertising through your device settings:

  • iOS: Settings > Privacy > Tracking
  • Android: Settings > Google > Ads

4.4. Third-party advertising partners have their own privacy policies governing the use of data they collect. We encourage you to review them.

4.5. Google Mobile Ads (AdMob) and similar SDKs may use identifiers and usage data as described in Google’s documentation. Premium users may receive fewer or no ads as configured in the App.

5. Data Storage and Security

5.1. Your data is stored using Firebase services (Google Cloud Platform), which employs industry-standard security measures.

5.2. Authentication data is managed by Firebase Authentication with secure password hashing.

5.3. App data (progress, scores, friends) is stored in Cloud Firestore.

5.4. Local preferences (language settings) and local usage limits (for example, daily session counts) may be stored on your device.

5.5. While we strive to protect your information, no method of electronic transmission or storage is 100% secure.

6. Data Sharing

We do not sell your personal information. We may share data in the following cases:

  • With other users: Your display name, points, and ranking are visible to other App users and your friends
  • With advertising partners: Limited device and usage data for ad delivery (see Section 4)
  • With Firebase/Google: As our infrastructure provider for data storage and authentication
  • With RevenueCat: Subscription status, identifiers, and related purchase data to provide and verify Premium access (see Section 2.4)
  • With Apple or Google: As required to process in-app purchases and comply with store rules
  • When required by law or to protect our rights

7. Your Rights

You have the right to:

  • Access your personal data through the App
  • Update your account information
  • Delete your account and associated data
  • Opt out of personalized advertising
  • Request a copy of your data by contacting us

For EU/EEA users (GDPR):

  • Right to data portability
  • Right to restrict processing
  • Right to object to processing
  • Right to lodge a complaint with a supervisory authority

8. Children's Privacy

The App is not intended for children under 13. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with personal data, please contact us and we will delete it.

9. Data Retention

We retain your data for as long as your account is active. If you delete your account, we will delete your personal data within 30 days, except where retention is required by law.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes through the App. Continued use of the App after changes constitutes acceptance of the updated policy.

11. Contact Us

If you have questions or concerns about this Privacy Policy or your data, please contact us at:

Terms of Use

Last updated: April 15, 2026

1. Acceptance of Terms

By downloading, installing, or using the Polish Rivals mobile application ("App"), you agree to be bound by these Terms of Use ("Terms"). If you do not agree to these Terms, do not use the App.

2. Description of Service

Polish Rivals is an educational mobile application designed to help users learn the Polish language through interactive exercises, word studies, and competitive features. The App allows users to:

  • Study Polish vocabulary organized by categories and difficulty levels
  • Compete with friends and random opponents in word battles
  • Track learning progress and earn points
  • Connect with other users via a friends system

3. User Accounts

3.1. To use the App, you must create an account by providing a valid email address and password.

3.2. You must verify your email address to access the full functionality of the App.

3.3. You are responsible for maintaining the confidentiality of your account credentials.

3.4. You must be at least 13 years of age to create an account and use the App.

3.5. You agree to provide accurate and complete information during registration.

4. User Conduct

You agree not to:

  • Use the App for any unlawful purpose
  • Impersonate any person or entity
  • Interfere with or disrupt the App or servers
  • Attempt to gain unauthorized access to any part of the App
  • Use automated systems or bots to interact with the App
  • Harass, abuse, or harm other users
  • Use offensive or inappropriate usernames

5. Advertising

5.1. The App may display advertisements provided by third-party advertising networks.

5.2. By using the App, you consent to the display of advertisements within the App.

5.3. We are not responsible for the content of third-party advertisements. Interaction with advertisements is at your own risk.

5.4. Advertising partners may collect certain data as described in our Privacy Policy.

5.5. Premium subscribers may receive an ad-free experience as described in the App.

6. Subscriptions, In-App Purchases, and Premium

6.1. The App may offer optional paid features, including auto-renewable subscriptions (for example, “Premium” or similar), consumable or non-consumable in-app purchases, and promotional or account-based access granted at our discretion.

6.2. Payment and billing. Purchases are processed by the platform provider (Apple App Store or Google Play). You authorize the platform to charge your payment method. Prices and subscription periods are shown in the App and in the store at the time of purchase.

6.3. Auto-renewal. If you purchase an auto-renewable subscription, it will renew automatically for the same term unless you turn off auto-renewal at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period.

6.4. Managing and canceling subscriptions. You can manage or cancel subscriptions in your account settings: on iOS, Settings > Apple ID > Subscriptions (or the App Store Subscriptions section); on Android, Google Play Store > Subscriptions. Deleting the App does not cancel your subscription.

6.5. Free trials and promotions. If we offer a free trial, any unused portion may be forfeited when you purchase a paid subscription, as stated at signup. We may change prices or offers; applicable law and store rules apply.

6.6. Refunds. For purchases through Apple or Google, refund requests are handled by the applicable store under its policies. We do not control Apple’s or Google’s refund decisions.

6.7. Feature limits. Without an active subscription or other eligible Premium access, the App may apply limits (for example, daily study sessions, advertising, or access to certain levels). Full details are described in the App.

7. Apple App Store — Licensed Application End User License Agreement (EULA)

If you download the App from the Apple App Store, your use of the App is also subject to Apple’s Licensed Application End User License Agreement (Standard EULA), available at:

https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

You acknowledge that these Terms are between you and Polish Rivals only, not Apple, and that Apple has no obligation to furnish maintenance or support services for the App. Apple is not responsible for the App or its content. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple and Apple may refund the purchase price (if any) in accordance with Apple’s policies; to the maximum extent permitted by law, Apple has no other warranty obligation. Apple is not responsible for addressing any claims relating to the App or your possession or use of it, including product liability claims, regulatory failures, or consumer protection claims. If a third party claims that the App infringes intellectual property rights, Polish Rivals (not Apple) is responsible for investigation and defense as required. Apple and its subsidiaries are third-party beneficiaries of these Terms with respect to your use of the App from the App Store, and Apple may enforce these provisions.

8. Intellectual Property

8.1. All content in the App, including but not limited to text, graphics, logos, icons, images, and software, is the property of Polish Rivals or its content suppliers.

8.2. You may not reproduce, distribute, modify, or create derivative works based on the App content without prior written consent.

9. Points and Ranking System

9.1. The App features a points and ranking system for competitive purposes only.

9.2. Points have no monetary value and cannot be exchanged for real currency or goods.

9.3. We reserve the right to reset, modify, or remove points and rankings at any time.

10. Termination

10.1. We may suspend or terminate your account at any time, with or without notice, for any reason, including violation of these Terms.

10.2. You may delete your account at any time through the App settings.

10.3. Upon termination, your right to use the App ceases immediately.

11. Disclaimer of Warranties

The App is provided "as is" and "as available" without warranties of any kind, either express or implied. We do not guarantee that the App will be uninterrupted, error-free, or free of viruses or other harmful components.

12. Limitation of Liability

To the maximum extent permitted by law, Polish Rivals shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the App.

13. Changes to Terms

We reserve the right to modify these Terms at any time. Continued use of the App after changes constitutes acceptance of the new Terms. We will notify users of significant changes through the App.

14. Contact

If you have questions about these Terms, please contact us at: