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Privacy Policy

TwinCalc — Dual Calculator

Effective date: June 22, 2026Last updated: June 22, 2026

This Privacy Policy explains how the TwinCalc mobile application ("TwinCalc," "the app," "we," "us," or "our") handles information. TwinCalc is developed and published by Softonight. By installing or using TwinCalc, you agree to the practices described in this Privacy Policy.

Summary

TwinCalc does not collect, store, use, transmit, or share any personal data.

TwinCalc is a calculator that runs entirely on your device and works fully offline. It has no user accounts, no servers, no analytics, no advertising, and requires no special permissions.

1. Information We Collect

We do not collect any information.

TwinCalc does not collect, request, or process any of the following:

  • Personal information (such as your name, email address, phone number, or address)
  • Account or login information (the app has no sign-in or registration)
  • Location data
  • Contacts, photos, files, camera, or microphone data
  • Device identifiers used for tracking or advertising
  • Usage analytics or behavioral data
  • Any of the calculations, expressions, or numbers you enter

All calculations you perform are processed locally on your device, held only in temporary memory while the app is open, and are not saved, logged, or sent anywhere.

2. How Information Is Used

Because TwinCalc does not collect any information, we do not use, profile, analyze, or monetize any personal data.

3. Data Sharing and Disclosure

We do not collect personal data, so there is nothing to share, sell, rent, or disclose to any third party, advertiser, data broker, or government authority.

4. Third-Party Services

TwinCalc does not integrate any third-party analytics, advertising, crash-reporting, or tracking services (for example, there is no Google Analytics, Firebase Analytics, AdMob, Facebook SDK, or similar).

The app is built with the Expo and React Native open-source frameworks. These frameworks run on your device and are not used by us to collect any information from you.

5. Network Access

TwinCalc functions entirely offline. The app does not make network requests to send or receive your data.

6. Permissions

TwinCalc does not request any sensitive device permissions (such as location, contacts, camera, microphone, or storage).

7. Data Storage and Retention

TwinCalc does not store your data on our servers or in persistent storage. Calculation content exists only in the app's temporary memory during use and is discarded when the app is closed or cleared.

8. Children's Privacy

TwinCalc is suitable for all ages and does not knowingly collect any data from anyone, including children under the age of 13 (or the equivalent minimum age in your jurisdiction). Because the app collects no personal information at all, it does not knowingly collect personal information from children.

9. Your Rights

Since we do not collect or store any personal data, there is no personal data for us to access, correct, export, or delete on your behalf. You remain in full control of any information you enter, all of which stays on your device.

10. Security

Because no personal data is collected or transmitted, there is no personal data held by us that could be exposed in a data breach. Calculations are processed locally on your device.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time, for example to reflect changes to the app or to legal requirements. Any changes will be posted on this page with an updated "Last updated" date. We encourage you to review this policy periodically.

12. Contact Us

If you have any questions or concerns about this Privacy Policy or TwinCalc, please contact us:

This Privacy Policy applies to the TwinCalc application distributed on the Google Play Store and other platforms where the app is made available.