Letter Collapseby EffexLabseffexlabs.com

Legal

Privacy Policy

This Privacy Policy explains how EffexLabs Pvt Ltd ("we", "us", or "our") handles information when you use the Letter Collapse mobile application (the "App").

Effective date: July 19, 2026App: Letter CollapsePackage ID: com.effexlabs.lettercollapse

1. Who we are

Letter Collapse is a single-player word puzzle game published by EffexLabs Pvt Ltd (Kochi, Kerala, India). The App does not require an account and does not provide user login.

Company website: https://www.effexlabs.com

2. Information we collect and use

On-device game data

The App stores the following locally on your device (for example via app storage and preferences):

  • In-progress game state (board, score, solved words, hints/shuffles remaining, difficulty)
  • In-app notification inbox items received by the App

This data stays on your device unless you clear app data or uninstall the App. We do not operate a user account system that uploads this gameplay data to EffexLabs servers.

Permissions and technical data

The App may request:

  • Internet - to load ads and receive push messages
  • Notifications - to show optional push / local alerts (Android 13+)

When the App communicates with Google or other network services, standard technical data such as IP address, device type, and app version may be processed by those services as part of normal internet traffic.

The App does not ask for camera, microphone, contacts, precise location, or access to your personal files for gameplay.

3. Advertising (Google AdMob)

Letter Collapse shows advertisements using Google AdMob (Google Mobile Ads), including banner and interstitial ads. Ad delivery may involve processing of device identifiers such as the Android Advertising ID, approximate location derived from IP, and interaction data related to ad serving and measurement.

Google's use of information is governed by Google's policies, including: Google Privacy Policy and AdMob & AdSense program policies.

You can limit ad personalization in your device settings (for example, Android advertising / ads personalization controls) or through Google's ad settings where available.

4. Push notifications (Firebase Cloud Messaging)

The App may use Firebase Cloud Messaging (FCM) to deliver optional push notifications (for example, game tips or product updates). If you grant notification permission, a device push token may be generated and processed by Google Firebase to deliver messages.

Learn more: Firebase Privacy and Security.

You can disable notifications in your device system settings at any time.

5. Third-party services

Depending on your device and App version, the App may use:

  • Google AdMob — advertising and ad measurement
  • Firebase Cloud Messaging — push notification delivery

These providers process data under their own privacy policies.

6. How we share information

We do not sell your personal information. Information is shared only:

  • With advertising and infrastructure providers needed to operate the App (for example Google AdMob / Firebase)
  • When required by law, or to protect rights, safety, and security
  • With service providers who support EffexLabs under appropriate confidentiality obligations

7. Data retention

Local game data remains on your device until you clear App storage or uninstall the App. Advertising and push infrastructure data retained by Google is governed by Google's retention practices.

8. Security

We use reasonable technical measures appropriate for a consumer mobile game. No method of electronic transmission or storage is completely secure.

9. Your choices and rights

  • Clear App data or uninstall the App to remove local gameplay and notification history stored on device
  • Disable notifications in system settings
  • Adjust advertising / personalization settings on your device
  • Contact us (below) for privacy questions; depending on your location, you may have additional rights under applicable law

10. Children's privacy

Letter Collapse is a general-audience word puzzle game and is not directed at children under 13 (or the equivalent minimum age in your country). We do not knowingly collect personal information from children for the purpose of creating accounts. If you believe a child has provided personal information to us inappropriately, contact us and we will take appropriate steps.

Because the App includes third-party advertising, parents and guardians should review device-level parental controls and ad settings.

11. Changes to this policy

We may update this Privacy Policy from time to time. We will post the revised policy at this URL and update the effective date above. Continued use of the App after changes means you accept the updated policy.

12. Contact us

For privacy questions about Letter Collapse, contact:

Contact