Sigma Privacy Policy.

Information we do not collect

We want to be clear about what Sigma does not do:

• We do not ask you to create an account or sign in.
• We do not collect your name, email address, phone number, or contacts.
• We do not collect your location.
• We do not access your photos, camera, or microphone.
• We do not use third-party analytics, advertising, or tracking services.
• We do not transmit any information from your device to us or to anyone else.

Information stored on your device

Sigma saves a single preference on your device: your selected calculator setting (sometimes called "force mode") for the default template. This preference is stored locally on your device only so the app remembers how you like it configured between sessions.

• Stays entirely on your device.
• Is never sent to us or any third party.
• Is not linked to your identity.
• Is removed when you delete the app from your device.

Children's privacy

Sigma does not collect personal information from anyone, including children. We do not knowingly collect data from children under the age of 13.

Security

Because Sigma does not collect or transmit personal information, there is no personal data held by us that could be exposed. The single preference the app stores remains on your own device under the protection of your device's operating system.

Changes to this Privacy Policy

We may update this Privacy Policy from time to time. Any changes will be reflected by updating the effective date at the top of this page. We encourage you to review this page periodically.

Contact us

If you have any questions about this Privacy Policy, you can contact us at: