Privacy Policy

Last Updated: June 2026

Welcome to All-In-One Calc. We respect your privacy and are committed to protecting your information. This Privacy Policy explains how information is collected, used, stored, and protected when you use our calculator and unit converter application.

1. Information We Collect

Calculation History

All-In-One Calc may store your calculation history, unit conversion records, and recently used values locally on your device to help you review and reuse previous calculations.

  • Calculation history is stored locally on your device.
  • You may clear saved history from within the app where available.
  • We do not upload your calculation history to our servers.
  • Your calculator data is not sold or shared with third parties.

Automatically Collected Information

To improve app performance and reliability, we may collect limited technical information such as:

  • Device model and manufacturer
  • Operating system version
  • App version
  • Language settings
  • Crash reports and diagnostic information
  • Basic usage analytics

Advertising Data

If the app displays advertisements or sponsor-supported rewards, third-party advertising partners may collect limited information such as:

  • Advertising ID
  • Device identifiers
  • Ad interaction data
  • Approximate location information

2. How We Use Information

We use collected information to:

  • Provide calculator and unit converter features
  • Save and display local calculation history
  • Improve app performance and stability
  • Fix bugs and technical issues
  • Analyze feature usage to improve user experience
  • Display advertisements or rewarded ads where applicable
  • Maintain app security and reliability

3. Permissions We Request

Internet Permission

Used for:

  • Loading advertisements
  • Rewarded sponsor video access
  • Analytics and crash reporting
  • App updates and service improvements

Network State Permission

Used to check internet availability for ads, analytics, and online service features.

Notification Permission

If supported in the app, notifications may be used for optional reminders or feature updates. You can manage notification permissions through your device settings.

4. Local Storage

All-In-One Calc is designed with offline-first functionality. Calculation history and converter records may be stored locally on your device.

  • Local data stays on your device.
  • Local history can be deleted by clearing app data or using app controls.
  • Uninstalling the app may remove locally stored history.

5. Advertising

All-In-One Calc may display advertisements, including rewarded video advertisements. These ads may be provided by third-party advertising services such as Google AdMob.

Advertising partners may collect and process limited device and ad interaction data according to their own privacy policies.

6. Analytics and Crash Reporting

We may use analytics and crash reporting tools to understand app performance, detect errors, and improve stability.

Analytics data does not include your personal calculation history or locally stored calculator records.

7. Third-Party Services

All-In-One Calc may use trusted third-party services including:

  • Google Play Services
  • Google AdMob
  • Firebase Analytics
  • Firebase Crashlytics

These third-party services operate under their own privacy policies and may collect information as described by their terms.

8. Data Sharing

We do not sell, rent, or trade your personal information.

Information may be shared only:

  • With service providers necessary for app functionality
  • To comply with legal obligations
  • To protect user safety, app security, or prevent fraud
  • With your consent

9. Data Security

We implement reasonable security measures to protect information from unauthorized access, disclosure, alteration, or misuse.

However, no electronic storage or internet transmission method is completely secure, and we cannot guarantee absolute security.

10. Children's Privacy

All-In-One Calc is intended for general users and educational purposes. We do not knowingly collect personal information from children under the age of 13.

If you believe a child has provided personal information, please contact us so we can take appropriate action.

11. Your Choices

You may control your data by:

  • Clearing calculation history within the app where available
  • Clearing app data from device settings
  • Managing ad personalization through your device or Google settings
  • Managing app permissions through device settings
  • Uninstalling the app at any time

12. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last Updated" date.

Continued use of All-In-One Calc after updates become effective means you accept the revised Privacy Policy.

13. Contact Us

If you have questions regarding this Privacy Policy, please contact us:

App Name: All-In-One Calc

Email: digitalfrontierfoundation@gmail.com

Developer: Super App Vision

Website: https://digitalfrontierfoundation.org

14. Consent

By downloading, installing, or using All-In-One Calc, you acknowledge that you have read, understood, and agreed to this Privacy Policy.