Privacy Policy & Terms of Service
Konstantinos Thelouras (also referred to as “we”, “us”, or “our”) built the Mobile Brain Games Premium app (the “Service”) as a commercial, freemium application for Android and iOS. This page informs you about our policies regarding the collection, use, and disclosure of personal information when anyone decides to use the Service, and sets out the terms that govern your use of the Service.
Privacy Policy
1. Information We Collect
| Source | What Is Collected | Where It Is Stored | Purpose |
|---|---|---|---|
| Local device storage (SharedPreferences) | • User profile data (userId, joinDate, premiumStatus, streaks, total games, play time, per‑game stats, high scores, best reaction times, etc.)• Selected locale • Demo‑game‑play tracking flags | On the user’s device only | Persist app state, enable offline play, remember language preference |
| Firebase Anonymous Authentication | Anonymous UID (generated by Firebase Auth) | Firebase Auth (cloud) | Provide a stable identifier for syncing the local profile across devices |
Cloud Firestore (via SyncService) | Full user profile (same fields as above) and a history of game results (gameId, category, score, duration, metadata) | users/{uid} collection & users/{uid}/history sub‑collection | Backup user progress, enable cross‑device sync, allow us to restore data if the user reinstalls the app |
| Firebase Analytics | Event logs such as app_open, screen_view, game_start, game_complete, paywall_view, purchase_attempt, purchase_success, purchase_failure, ui_interaction plus user properties is_premium, total_games_played, current_streak, best_streak | Google’s analytics servers (Google Analytics for Firebase) | Understand how the Service is used, monitor app health, improve UX, and measure conversion to the pro version |
| RevenueCat (one‑time purchase manager) | Transaction identifier, receipt data, anonymous device identifier, purchase status (entitlement “Mobile Brain Games Premium Pro”) | RevenueCat servers | Verify that the user has performed the one‑time purchase and to unlock the pro features |
| Error / Crash Data (optional – only when a crash occurs) | Stack traces, error messages, device model, OS version, app version, battery level, network type, locale, timestamp, synthetic device identifier | Sent to Firebase (if Crashlytics is enabled in the future) | Diagnose and fix technical issues |
What We Do Not Collect
We do not collect personally identifiable information such as name, email address, phone number, or location. No advertising SDKs (AdMob, Facebook, etc.) are included, and we never request camera, microphone, contacts, or health data.
2. How We Use Your Information
- Provide & improve the Service – store game progress, sync it to the cloud, and restore it on new devices.
- Enable pro features – verify your one‑time purchase status via RevenueCat.
- Analytics & performance monitoring – aggregate usage data (no personal identifiers) to guide feature development.
- Error reporting – optional crash logs help us resolve bugs.
All data is processed in accordance with the privacy policies of the third‑party services listed below.
3. Third‑Party Services
| Service | What They May Collect | Links to Their Policies |
|---|---|---|
| Firebase (Google Analytics, Auth, Firestore) | Event data, anonymous UID, stored documents | https://firebase.google.com/support/privacy |
| RevenueCat | Purchase receipt, device identifier, entitlement status | https://www.revenuecat.com/privacy |
| Google Play Billing (Android) | Transaction IDs, payment method (handled by Google) | https://play.google.com/about/privacy/ |
| Apple App Store (iOS) | Transaction IDs, receipt data (handled by Apple) | https://www.apple.com/legal/privacy/en-ww/ |
We do not share your data with any other parties, except as required to process payments (Apple/Google) or to operate the above services.
4. One‑Time Purchase & Pro Unlock
- The Service uses a freemium model. Five games are free; nine additional games become permanently available after a single, lifetime purchase (“Mobile Brain Games Premium Pro”).
- The purchase is managed through RevenueCat as a one‑time entitlement, not a subscription.
- When you make the purchase, RevenueCat records the transaction identifier and receipt, validates it with the corresponding store (Google Play or Apple App Store), and grants you the “Mobile Brain Games Premium Pro” entitlement forever.
- No recurring billing, auto‑renewal, or future charges occur.
5. Permissions
| Platform | Permission | Reason |
|---|---|---|
| Android | android.permission.INTERNET | Required for all network communication (Firebase, RevenueCat, sync). |
| Android | android.permission.ACCESS_NETWORK_STATE | Detect connectivity to enable/disable online features. |
| Android | com.android.vending.BILLING | Required for Google Play one‑time purchase. |
| iOS | No special permissions declared. | The app does not request camera, microphone, location, contacts, etc. |
6. Security
We employ industry‑standard encryption for data in transit (HTTPS/TLS) and rely on the security measures of Firebase and RevenueCat for data at rest. While we strive to protect your information, no transmission over the internet can be guaranteed 100 % secure.
7. Children’s Privacy
The Service is not directed at children under 13 years of age, and we do not knowingly collect personal information from anyone in that age group. If you become aware that a child under 13 has inadvertently provided us with personal data, please contact us so we can delete it promptly.
8. Changes to This Privacy Policy
We may update this policy from time to time. When we do, we will post the revised version in the app and update the “Last Updated” date at the top of this page. Your continued use of the Service after any changes constitutes acceptance of the new policy.
9. Contact Information
If you have any questions about this Privacy Policy, please contact the developer via the email address provided in the app‑store listing or through the “Contact” link on the official website.
Terms of Service
1. Acceptance
By downloading, installing, or using Mobile Brain Games Premium, you (“User” or “you”) agree to be bound by these Terms of Service (“Terms”). If you do not agree, do not use the Service.
2. Account & Authentication
The Service does not require a personal account. An anonymous Firebase UID is created automatically to sync your progress across devices. You are responsible for maintaining the confidentiality of this UID; however, it does not reveal personal identity.
3. License
We grant you a non‑exclusive, non‑transferable, revocable limited license to install and use the Service on any compatible device solely for personal, non‑commercial use, subject to these Terms.
4. One‑Time Purchase & Payment
- Free tier – Access to five core games and limited daily play.
- Pro tier – Access to nine additional games, unlimited replays, and advanced analytics after a single lifetime purchase.
- Pricing – Visible in the paywall UI; may change with prior notice in the store listing.
- Purchase flow – Handled by Google Play (Android) or Apple App Store (iOS) through RevenueCat as a one‑time entitlement.
- No recurring charges – Once the purchase is completed, the pro features remain unlocked forever.
- Refunds – Managed exclusively by Google Play or Apple. If you seek a refund, you must request it through the respective store; we have no ability to issue refunds directly.
5. User Conduct
You agree not to:
- Reverse‑engineer, decompile, or disassemble any part of the Service.
- Use the Service to violate any law or third‑party rights.
- Submit false information or attempt to fraudulently obtain the pro entitlement.
- Interfere with the normal operation of the Service (e.g., hacking, exploiting bugs).
Violation may result in immediate termination of your access, without refund.
6. Termination
We may suspend or terminate your access to the Service at any time, with or without cause, for violation of these Terms or for any other reason. Upon termination, any locally stored data remains on your device, but cloud‑synced data will become inaccessible.
7. Disclaimer of Warranties
The Service is provided “as‑is” and “as‑available” without warranties of any kind, either express or implied, including but not limited to:
- Merchantability, fitness for a particular purpose, or non‑infringement.
- Accuracy, completeness, or reliability of any data or functionality.
We do not guarantee that the Service will be error‑free, uninterrupted, or compatible with all devices.
8. Limitation of Liability
To the maximum extent permitted by applicable law, we shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, revenue, or profits arising out of or related to your use of the Service, even if we have been advised of the possibility of such damages.
9. Governing Law
These Terms shall be governed by and construed in accordance with the laws of Greece, without regard to its conflict‑of‑law principles. Any disputes shall be resolved in the competent courts of Athens, Greece.
10. Changes to These Terms
We may revise these Terms at any time. Revised Terms will be posted within the app and will become effective upon posting. Continued use of the Service after such changes indicates your acceptance of the new Terms.
11. Contact
For any inquiries regarding these Terms, please use the contact information listed in the app‑store listing or on the developer’s website.
Last Updated: 2026‑06‑26
By using Mobile Brain Games Premium you acknowledge that you have read, understood, and agree to both this Privacy Policy and these Terms of Service.# Privacy Policy & Terms of Service
Konstantinos Thelouras (also referred to as “we”, “us”, or “our”) built the Mobile Brain Games Premium app (the “Service”) as a commercial, freemium application for Android and iOS. This page informs you about our policies regarding the collection, use, and disclosure of personal information when anyone decides to use the Service, and sets out the terms that govern your use of the Service.
Privacy Policy
1. Information We Collect
| Source | What Is Collected | Where It Is Stored | Purpose |
|---|---|---|---|
| Local device storage (SharedPreferences) | • User profile data (userId, joinDate, premiumStatus, streaks, total games, play time, per‑game stats, high scores, best reaction times, etc.)• Selected locale • Demo‑game‑play tracking flags | On the user’s device only | Persist app state, enable offline play, remember language preference |
| Firebase Anonymous Authentication | Anonymous UID (generated by Firebase Auth) | Firebase Auth (cloud) | Provide a stable identifier for syncing the local profile across devices |
Cloud Firestore (via SyncService) | Full user profile (same fields as above) and a history of game results (gameId, category, score, duration, metadata) | users/{uid} collection & users/{uid}/history sub‑collection | Backup user progress, enable cross‑device sync, allow us to restore data if the user reinstalls the app |
| Firebase Analytics | Event logs such as app_open, screen_view, game_start, game_complete, paywall_view, purchase_attempt, purchase_success, purchase_failure, ui_interaction plus user properties is_premium, total_games_played, current_streak, best_streak | Google’s analytics servers (Google Analytics for Firebase) | Understand how the Service is used, monitor app health, improve UX, and measure conversion to the pro version |
| RevenueCat (one‑time purchase manager) | Transaction identifier, receipt data, anonymous device identifier, purchase status (entitlement “Mobile Brain Games Premium Pro”) | RevenueCat servers | Verify that the user has performed the one‑time purchase and to unlock the pro features |
| Error / Crash Data (optional – only when a crash occurs) | Stack traces, error messages, device model, OS version, app version, battery level, network type, locale, timestamp, synthetic device identifier | Sent to Firebase (if Crashlytics is enabled in the future) | Diagnose and fix technical issues |
What We Do Not Collect
We do not collect personally identifiable information such as name, email address, phone number, or location. No advertising SDKs (AdMob, Facebook, etc.) are included, and we never request camera, microphone, contacts, or health data.
2. How We Use Your Information
- Provide & improve the Service – store game progress, sync it to the cloud, and restore it on new devices.
- Enable pro features – verify your one‑time purchase status via RevenueCat.
- Analytics & performance monitoring – aggregate usage data (no personal identifiers) to guide feature development.
- Error reporting – optional crash logs help us resolve bugs.
All data is processed in accordance with the privacy policies of the third‑party services listed below.
3. Third‑Party Services
| Service | What They May Collect | Links to Their Policies |
|---|---|---|
| Firebase (Google Analytics, Auth, Firestore) | Event data, anonymous UID, stored documents | https://firebase.google.com/support/privacy |
| RevenueCat | Purchase receipt, device identifier, entitlement status | https://www.revenuecat.com/privacy |
| Google Play Billing (Android) | Transaction IDs, payment method (handled by Google) | https://play.google.com/about/privacy/ |
| Apple App Store (iOS) | Transaction IDs, receipt data (handled by Apple) | https://www.apple.com/legal/privacy/en-ww/ |
We do not share your data with any other parties, except as required to process payments (Apple/Google) or to operate the above services.
4. One‑Time Purchase & Pro Unlock
- The Service uses a freemium model. Five games are free; nine additional games become permanently available after a single, lifetime purchase (“Mobile Brain Games Premium Pro”).
- The purchase is managed through RevenueCat as a one‑time entitlement, not a subscription.
- When you make the purchase, RevenueCat records the transaction identifier and receipt, validates it with the corresponding store (Google Play or Apple App Store), and grants you the “Mobile Brain Games Premium Pro” entitlement forever.
- No recurring billing, auto‑renewal, or future charges occur.
5. Permissions
| Platform | Permission | Reason |
|---|---|---|
| Android | android.permission.INTERNET | Required for all network communication (Firebase, RevenueCat, sync). |
| Android | android.permission.ACCESS_NETWORK_STATE | Detect connectivity to enable/disable online features. |
| Android | com.android.vending.BILLING | Required for Google Play one‑time purchase. |
| iOS | No special permissions declared. | The app does not request camera, microphone, location, contacts, etc. |
6. Security
We employ industry‑standard encryption for data in transit (HTTPS/TLS) and rely on the security measures of Firebase and RevenueCat for data at rest. While we strive to protect your information, no transmission over the internet can be guaranteed 100 % secure.
7. Children’s Privacy
The Service is not directed at children under 13 years of age, and we do not knowingly collect personal information from anyone in that age group. If you become aware that a child under 13 has inadvertently provided us with personal data, please contact us so we can delete it promptly.
8. Changes to This Privacy Policy
We may update this policy from time to time. When we do, we will post the revised version in the app and update the “Last Updated” date at the top of this page. Your continued use of the Service after any changes constitutes acceptance of the new policy.
9. Contact Information
If you have any questions about this Privacy Policy, please contact the developer via the email address provided in the app‑store listing or through the “Contact” link on the official website.
Terms of Service
1. Acceptance
By downloading, installing, or using Mobile Brain Games Premium, you (“User” or “you”) agree to be bound by these Terms of Service (“Terms”). If you do not agree, do not use the Service.
2. Account & Authentication
The Service does not require a personal account. An anonymous Firebase UID is created automatically to sync your progress across devices. You are responsible for maintaining the confidentiality of this UID; however, it does not reveal personal identity.
3. License
We grant you a non‑exclusive, non‑transferable, revocable limited license to install and use the Service on any compatible device solely for personal, non‑commercial use, subject to these Terms.
4. One‑Time Purchase & Payment
- Free tier – Access to five core games and limited daily play.
- Pro tier – Access to nine additional games, unlimited replays, and advanced analytics after a single lifetime purchase.
- Pricing – Visible in the paywall UI; may change with prior notice in the store listing.
- Purchase flow – Handled by Google Play (Android) or Apple App Store (iOS) through RevenueCat as a one‑time entitlement.
- No recurring charges – Once the purchase is completed, the pro features remain unlocked forever.
- Refunds – Managed exclusively by Google Play or Apple. If you seek a refund, you must request it through the respective store; we have no ability to issue refunds directly.
5. User Conduct
You agree not to:
- Reverse‑engineer, decompile, or disassemble any part of the Service.
- Use the Service to violate any law or third‑party rights.
- Submit false information or attempt to fraudulently obtain the pro entitlement.
- Interfere with the normal operation of the Service (e.g., hacking, exploiting bugs).
Violation may result in immediate termination of your access, without refund.
6. Termination
We may suspend or terminate your access to the Service at any time, with or without cause, for violation of these Terms or for any other reason. Upon termination, any locally stored data remains on your device, but cloud‑synced data will become inaccessible.
7. Disclaimer of Warranties
The Service is provided “as‑is” and “as‑available” without warranties of any kind, either express or implied, including but not limited to:
- Merchantability, fitness for a particular purpose, or non‑infringement.
- Accuracy, completeness, or reliability of any data or functionality.
We do not guarantee that the Service will be error‑free, uninterrupted, or compatible with all devices.
8. Limitation of Liability
To the maximum extent permitted by applicable law, we shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, revenue, or profits arising out of or related to your use of the Service, even if we have been advised of the possibility of such damages.
9. Governing Law
These Terms shall be governed by and construed in accordance with the laws of Greece, without regard to its conflict‑of‑law principles. Any disputes shall be resolved in the competent courts of Athens, Greece.
10. Changes to These Terms
We may revise these Terms at any time. Revised Terms will be posted within the app and will become effective upon posting. Continued use of the Service after such changes indicates your acceptance of the new Terms.
11. Contact
For any inquiries regarding these Terms, please use the contact information listed in the app‑store listing or on the developer’s website.
Last Updated: 2026‑06‑26
By using Mobile Brain Games Premium you acknowledge that you have read, understood, and agree to both this Privacy Policy and these Terms of Service.