← HP 12C Calculator

Privacy

This calculator is a web app by ZnTECH - Smart Digital Solutions, available at hp12c.zntech.com.br.

What we store

• Language and font size in your browser’s localStorage.
• PWA cache (service worker) for offline use, on your device.

This data never leaves your device. There is no sign-up, no tracking cookies, no third-party analytics, and calculations are not sent to a server.

Clipboard

The result is copied only if you tap “Copy”. The clipboard is never read without that action.

Contact

Questions: zntech.com.br

Last updated: 31 August 2026.