Privacy Policy

Effective date: January 2026

Gematria Calculator operates the website www.gematriacalculator.us and the Gematria Calculator apps for iOS and Android (together, the “Service”). This policy explains what information the Service handles and the choices you have.

Information we do not collect

We do not collect personally identifiable information such as your name, email address, or contact details. The website requires no account and asks for none of your personal data.

Data stored on your device

Your calculation history, previous searches, enabled ciphers and display settings are stored only in your browser's local storage (or the app's local storage on mobile). They never leave your device, and you can erase them at any time from the settings page.

Information collected automatically

Like most services, basic non-personal technical data — such as device type, browser and aggregate usage statistics — may be collected automatically by our hosting infrastructure to keep the Service working and secure. Number searches are processed by our database server to return matching phrases; queries are not linked to any identity.

The public phrase database

Words and phrases calculated on the website may be added anonymously to the public phrase database that powers number search — this is how the corpus grows. Only the phrase text and its computed cipher values are stored; nothing links a phrase to you. Please don't type personal information into the calculator.

Payments (mobile apps)

Subscriptions in the mobile apps are processed entirely by the Apple App Store or Google Play Store. We do not collect, store, or have access to your payment information, such as credit card numbers.

Advertising

The mobile apps display advertising served by Google AdMob. The website is currently advertising-free; if advertising (Google AdSense) is introduced, a consent banner will be shown where required and this policy will be updated. For details of Google's data practices see policies.google.com/privacy.

Cookies

The website uses only the local storage described above for your settings. Any future analytics or advertising cookies will be subject to the consent mechanisms required by law, and you can always disable cookies via your browser settings.

Your rights (GDPR / CCPA)

Depending on your jurisdiction, you have rights of access, correction, erasure and portability over personal data. Because the Service stores your data locally on your device and collects no personally identifiable information, most requests can be satisfied directly from the settings page (“Clear all data”). For anything else, contact us and we will respond within one month.

Children's privacy

The Service does not knowingly collect data from anyone under 13 years of age.

Changes

We may update this policy from time to time. The effective date above reflects the latest revision.