Privacy Policy – Mental Math Challenge

Last updated: July 24, 2026

Mental Math Challenge respects your privacy. This Privacy Policy explains what information may be stored or processed when you use the Mental Math Challenge Android application.

App name: Mental Math Challenge
Package name: com.elm_cr4.mentalmathchallenge
Developer and publisher: elm-cr4
Contact: support.elmcr4@gmail.com

1. Overview

Mental Math Challenge does not require a user account and does not operate its own developer-controlled cloud backend.

Most gameplay information is stored locally on your device. The app also uses certain Google services for advertising, consent management, and optional one-time purchases. These services may process information according to their own privacy policies.

2. Information stored on your device

The app may store the following information locally:

This information is used to provide gameplay, progression, statistics, achievements, preferences, and purchased features.

The developer does not receive this locally stored gameplay information through a developer-operated server.

Depending on your Android and Google backup settings, some gameplay progress and theme preferences may be included in Android's system backup and restored to another device.

3. Advertising

The free version of Mental Math Challenge may display advertisements provided by Google AdMob.

The Google Mobile Ads SDK may automatically collect or process information such as:

This information may be used by Google for advertising, analytics, service delivery, and fraud prevention.

Depending on your location and privacy choices, advertisements may be personalized, non-personalized, or limited.

Users with an active Remove All Ads or Premium entitlement will not be shown advertisements while that entitlement remains verified.

4. Consent and privacy choices

Mental Math Challenge uses Google's User Messaging Platform to request and manage advertising consent where required.

When applicable, a consent form may be displayed before advertisements are requested. You may also be able to review or change your advertising privacy choices from:

Settings → Privacy Choices

The Privacy Choices option is shown when required by Google's consent system.

5. Google Play purchases

Mental Math Challenge offers optional non-consumable, one-time purchases through Google Play, including:

There are no subscriptions.

Google Play processes the payment transaction. The app may receive information such as:

The app does not receive your complete payment-card details.

Purchase information is used to unlock purchased features, remove advertisements, restore purchases, and verify that an entitlement remains active.

A temporary entitlement cache may be stored locally. Purchases are reconciled with Google Play when the service is available.

6. Third-party services

Mental Math Challenge uses the following third-party services:

These providers may collect and process information under their own terms and privacy policies.

For more information, see:

7. Data sharing

The developer does not sell or rent your personal information.

Information may be processed or shared with Google when required to provide:

The developer does not operate an independent advertising, analytics, account, or payment backend for this app.

8. Data retention and deletion

Locally stored gameplay information generally remains on your device until you:

Android system backup may restore eligible gameplay information after reinstallation or when moving to another device.

Google Play purchase records are associated with your Google Play account and are managed by Google. Uninstalling the app does not delete your Google Play purchase history.

To remove locally stored app data, open your Android device settings, select Mental Math Challenge, and clear the app's storage, or uninstall the app.

For questions concerning data connected with the developer, contact:

support.elmcr4@gmail.com

9. Children’s privacy

Mental Math Challenge is intended for users aged 13 and older and is not specifically directed toward children under the age of 13.

The developer does not knowingly collect personal information directly from children through a developer-operated account or backend.

Parents or guardians who believe that a child has provided personal information connected with the app may contact:

support.elmcr4@gmail.com

10. Security

Reasonable technical measures are used to reduce unauthorized access to information handled by the app.

However, no device, network transmission, third-party service, or storage system can be guaranteed to be completely secure.

11. International data processing

Google and its service providers may process information in countries other than the country where you live. Their processing is governed by their applicable privacy policies and legal safeguards.

12. Changes to this Privacy Policy

This Privacy Policy may be updated when the app, its services, or applicable requirements change.

The updated version will be published on this page with a revised “Last updated” date.

13. Contact

Questions about this Privacy Policy or Mental Math Challenge can be sent to:

elm-cr4
mailto: support.elmcr4@gmail.com