Privacy

Last updated 31 July 2026

Numera

Numera collects no personal data. There are no accounts, no analytics, no advertising identifiers and no crash-reporting SDKs. Your calculations and history tape are stored on your device and are never transmitted.

One thing leaves the device: an anonymous HTTPS request to the Frankfurter API to fetch European Central Bank exchange rates. It contains no identifiers, no device information beyond what any HTTPS request necessarily reveals, and nothing about what you were calculating.

This website

This site sets no cookies and runs no analytics, tracking pixels or third-party embeds. There is nothing to consent to, so there is no banner. Standard server logs may briefly record requests for security and reliability; they are not used to profile anyone.

The contact form

If you write to me, I keep your message and email address only for as long as it takes to answer you and resolve the issue.

Questions

Email privacy@sigmaoctantis.dev and I will answer.