Privacy Policy

Totient is a feet-inch-fraction calculator for iPhone and Android. It is built so there is almost nothing to say here: there is no account to create, and the numbers you enter stay on your device. This policy explains, in plain terms, what the app does and does not do with your information.

The short version

• No account, no sign-up. You never give us a name, email, or password to use the app.
• Your calculations stay on your phone. Measurements and saved history are stored locally on your device, not on our servers.
• Works fully offline. The calculator does not need a network connection, and it does not transmit your calculations anywhere.
• No ads, and we never sell your data.

Information the app collects

The Totient app does not collect, transmit, or store personal information on our servers. It does not request your contacts, location, photos, microphone, or camera. The measurements you enter and any saved results are kept only in the app's local storage on your device, and you can clear them at any time by clearing the app's data or uninstalling the app.

Information the app does not collect

We do not gather your name, email address, device identifiers for advertising, contacts, precise or approximate location, or the content of your calculations. Because the app runs locally, that information never leaves your device through Totient.

App stores

When you download or update Totient, the Apple App Store and Google Play handle the transaction and may collect their own information (for example, aggregate install and crash statistics) under their own privacy policies. We receive only anonymous, aggregated statistics from these stores and cannot identify individual users from them. See the Apple Privacy Policy and the Google Privacy Policy for details.

Our website

The Totient website (totient.app) uses Plausible Analytics, a privacy-friendly analytics service that does not use cookies and does not collect any personal data or personally identifiable information. It records only aggregate, anonymous visit statistics. This applies to the website only — not to the app itself.

Children

Totient is a general-purpose calculator and is not directed at children. It does not knowingly collect any personal information from anyone, including children under 13.

Changes to this policy

If this policy changes, we will update the "Last updated" date above and post the revised policy on this page. Material changes will be reflected here before they take effect.

Contact

Questions about this policy or your data? Email us at hello@totient.app.