Last updated: 22 August 2026
CalcHub is designed to be private by default. This policy explains exactly what happens to your information when you use the app.
1. Information We Collect
None. CalcHub does not collect, transmit, or sell any personal information. We do not ask you to create an account, and we do not request your name, email, phone number, contacts, location, or any device identifiers.
2. Information We Do NOT Collect
We do not use analytics, tracking pixels, advertising SDKs, or crash-reporting services. We do not build user profiles and we do not track your activity across other apps or websites.
3. How Calculations Are Processed
All calculations — standard, scientific, finance, and converters — run entirely on your device. Your inputs and results are never sent to any server.
4. Local Storage of Calculation History & Preferences
Your calculation history, favorites, recently used tools, and theme preference are stored only in your device's local app storage. This data stays on your device, is not backed up to us, and can be cleared any time from Settings → Data.
5. Third-Party Sharing
We do not share any information with third parties, because we do not collect any. The app does not make network requests for its core features; currency exchange rates are static values bundled inside the app and are clearly labelled as approximate.
6. Advertising
CalcHub contains no advertisements and no advertising SDKs (including Google AdMob). No ad networks receive any data from this app.
7. Data Security
Because your data never leaves your device, there is no server-side data to breach. Locally stored data is protected by your device's own security (screen lock, OS sandboxing). You remain in control of it at all times.
8. Children's Privacy
CalcHub is a general-purpose utility and is safe for all ages. It does not knowingly collect any personal information from anyone, including children under 13.
9. Your Rights & Choices
You can delete individual history entries, clear all history, clear recent tools, or uninstall the app at any time to remove all locally stored data. No request to us is required because we hold none of your data.
10. Changes to This Policy
If this policy changes, the updated version will be published within the app with a new 'Last updated' date. Continued use after an update indicates acceptance of the revised policy.
11. Contact
Questions about privacy? We're happy to help. You can reach our support team any time using the email below.
Support email: jarvisai9077@gmail.com