Privacy Policy

Last Updated: January 2026

1. Information We Collect

Excel Formulas Unleashed is committed to protecting your privacy. We operate on a privacy-first principle:

1.2 Analytics and Performance Monitoring

We use Firebase Analytics and Firebase Crashlytics to understand how users interact with our app and to improve app performance.

Firebase Analytics collects:

• App usage data (screens viewed, features used)
• Device information (device model, OS version)
• Ad interaction data (ad impressions, clicks)
• Session duration and frequency

Firebase Crashlytics collects:

• Crash reports and error logs
• Device state at time of crash
• App performance data

This data is used to:

• Improve app functionality and user experience
• Fix bugs and crashes
• Measure advertising effectiveness
• Understand which features are most popular

Data collected by Firebase is subject to Google's Privacy Policy.

Firebase retains analytics data for a limited period as configured by Google and the developer.

1.3 Data We DO NOT Collect

• Personal information (name, email, phone number)
• User accounts or login credentials
• Your favorites, bookmarks, or notes
• Your learning progress or quiz scores
• Location data
• Contact lists or photos

1.4 Crash & Diagnostic Data

We collect crash and diagnostic information to improve app stability:

• Crash reports and stack traces
• Device model and Android version
• App version and performance metrics
• Error logs (no personal data included)

This data is anonymous and used solely to fix bugs and improve app performance.

1.5 Data Stored Locally on Your Device

• Favorites & Bookmarks: Stored in local database (Room)
• Notes: Saved locally on your device
• User Progress: Tracked locally
• App Preferences: Theme settings, notification preferences

This data never leaves your device and is not accessible to us or any third party.

1.6 Third-Party Services

We use Google AdMob to display advertisements. AdMob may collect:

• Advertising ID
• Device information (model, OS version)
• IP address
• App usage data for ad personalization

For more information, see Google's Privacy Policy.

2. How We Use Information

• Local Data: Used solely for app functionality (saving favorites, tracking progress)
• AdMob Data: Used by Google to serve relevant advertisements

3. Data Storage & Security

• All user data is stored locally using Android's Room database
• No cloud storage or remote servers are used
• Data is protected by your device's security measures
• We do not have access to your data

4. Data Sharing

We do not sell user data. Data may be shared with Google through Firebase Analytics and Google AdMob for analytics, crash reporting, and advertising purposes, in accordance with Google's Privacy Policy.

5. Your Rights & Data Control

You have complete control over your data:

• Delete Data: Uninstalling the app removes all local data
• Clear Data: Use Android Settings → Apps → Excel Formulas Unleashed → Clear Data
• Opt-out of Personalized Ads: Android Settings → Google → Ads → Opt out of Ads Personalization

6. Children's Privacy

Excel Formulas Unleashed is intended for users aged 13 and above. We do not knowingly collect personal information from children under 13. The app does not include features targeted specifically at children.

7. Permissions

The app requests the following permissions:

• INTERNET: Required for displaying ads
• ACCESS_NETWORK_STATE: To check internet connectivity for ads
• POST_NOTIFICATIONS: To send daily Excel tips (optional, can be disabled)

8. Changes to Privacy Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last Updated" date. Continued use of the app after changes constitutes acceptance of the updated policy.

9. Offline Functionality

Excel Formulas Unleashed works 100% offline. Internet connection is only required for displaying advertisements. All learning content and features are available without internet access.

10. Contact Us

---

© 2026 Excel Formulas Unleashed. All rights reserved.