MasterChem Privacy Policy

Effective Date: May 22, 2025

Welcome to MasterChem (the "App"). This Privacy Policy explains our policies and procedures on the collection, use, and disclosure of your information when you use the App and tells you about your privacy rights and how the law protects you.

By using the App, you agree to the collection and use of information in accordance with this Privacy Policy.

1. Information Collection

When you use MasterChem, we and our third-party partners, such as Google AdMob, may collect certain information automatically from you and/or your device. This information helps us provide and improve the App, display advertisements, and ensure the functionality of our services.

The types of information that may be collected include:

• Device Information: Such as your device model, operating system version, IP address, mobile network information, and device identifiers (e.g., Advertising ID like IDFA or Google Advertising ID, other pseudonymous identifiers).

• Usage Data / Product Interaction: Information about how you interact with the App and the ads displayed within it, such as app launches, features used, ad impressions, ad clicks, and engagement with ads.

• Advertising Data: Information related to the advertisements shown to you, such as the type of ad and your interaction with it.

• Coarse Location Information: We or our advertising partners may infer your general geographic location (e.g., city or region) from your IP address or other network signals to serve more relevant advertisements. We do not collect precise GPS location.

• Diagnostic Information: Such as crash logs and performance data related to the App and the advertising SDKs to help us identify and fix issues and improve performance.

We do not directly collect personally identifiable information (PII) such as your name, email address, phone number, or physical address through the core functionality of MasterChem, unless you voluntarily provide it to us through other means (e.g., by contacting support).

2. How We Use Your Information

The information collected is used for the following purposes:

• To Provide and Maintain Our App: Ensuring the App functions correctly and providing you with its features.

• To Serve Advertisements: Our primary use of collected data is to facilitate the display of advertisements within the App through our third-party advertising partner, Google AdMob. This includes:

  • Displaying contextual or personalized advertisements.

  • Measuring the effectiveness of advertising campaigns.

  • Limiting the number of times you see the same ad (frequency capping).

• To Improve Our App: Analyzing usage patterns and diagnostic data to understand how our App is used, identify areas for improvement, and enhance user experience.

• For Analytics: To understand how users engage with the App and ads.

• To Ensure Security and Prevent Fraud: Protecting our services and users.

3. Information Sharing and Disclosure

We may share certain information collected through the App under the following circumstances:

• With Advertising Partners (Google AdMob): We share information with Google AdMob (and potentially other ad networks it mediates with) to enable them to display advertisements in our App, personalize those ads (if you have consented to tracking where applicable), and measure their performance. Google AdMob's use of your information is governed by their own privacy policies. We encourage you to review Google's Ad Privacy & Terms: https://policies.google.com/technologies/ads

• For Legal Reasons: We may disclose your information if required to do so by law or in response to valid requests by public authorities (e.g., a court or a government agency).

• To Protect Our Rights: We may disclose information if we believe it's necessary to investigate, prevent, or take action regarding potential violations of our policies, suspected fraud, situations involving potential threats to the safety of any person, or as evidence in litigation in which we are involved.

We do not sell your personal information.

4. Data Storage and Retention

• Local App Data: MasterChem may store some non-personal data locally on your device related to your progress or settings within the App (e.g., test scores, unlocked topics). This data is not transmitted to us.

• Third-Party Data Storage: Data collected by our advertising partners (like Google AdMob) is stored and managed by them according to their own data retention policies. Please refer to their privacy policies for more information.

5. Third-Party Services

MasterChem uses Google AdMob, a third-party advertising service provided by Google. Google AdMob may collect and use data as described in its privacy policy and terms, which includes the use of cookies, web beacons, advertising identifiers, and similar technologies to collect information and serve ads.

6. Cookies and Similar Technologies

Our advertising partners, like Google AdMob, may use cookies (small files placed on your device), mobile advertising identifiers (like Apple's IDFA or Android's Advertising ID), and other similar technologies to collect information about your interaction with the App and ads, to help serve targeted advertising, and to measure ad performance.

7. Your Privacy Rights and Choices (Managing Ad Preferences)

You may have certain rights and choices regarding your information and how it's used for advertising:

• Opting Out of Personalized Advertising:

  • On iOS: You can limit ad tracking by enabling "Limit Ad Tracking" (on older iOS versions) or by managing your App Tracking Transparency (ATT) settings (on iOS 14.5 and later) in your device's Settings app. If you do not consent to tracking via the ATT prompt, the Advertising Identifier (IDFA) will not be shared for personalized advertising.

  • Google Ad Settings: You may be able to control Google's ad personalization through your Google Account settings: https://adssettings.google.com

• User Messaging Platform (UMP) / Consent Management: For users in certain regions (e.g., European Economic Area, UK), we use Google's User Messaging Platform to obtain consent for data collection and use for personalized advertising. You can typically manage your consent choices through the mechanisms provided by the UMP SDK.

Please note that opting out of personalized advertising does not mean you will no longer see ads; it means the ads you see may be less relevant to your interests.

8. Children's Privacy

MasterChem is not directed to children under the age of 13 (or the relevant age in your jurisdiction that requires parental consent for data collection, e.g., 16 in some parts of Europe). We do not knowingly collect personal information from children.

If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us. If we become aware that we have collected personal information from children without verification of parental consent, we take steps to remove that information from our (or our partners') systems.

We take steps to ensure that ads shown are appropriate for a general audience, and you can also explore Google's settings for "tag for child-directed treatment" if your app is primarily child-directed (though this has implications for the types of ads shown and data collected).

9. Links to Other Websites

Our App may contain links to other websites (e.g., within advertisements) that are not operated by us. If you click on a third-party link, you will be directed to that third party's site. We strongly advise you to review the Privacy Policy of every site you visit. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.

10. Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page within the App and/or on our website, and updating the "Effective Date" at the top of this Privacy Policy.

You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

11. Contact Us

If you have any questions about this Privacy Policy, you can contact us:
By email: deltacalendarcontact@gmail.com