Privacy
Last updated 4 October 2026
The short version: the calculator works out your results in your own browser, and this site never sends your answers to a server. There are no accounts, no cookies and no ads.
Your answers
- Everything you enter in the calculator and the model editor is processed by code running in your browser. This site does not send it to us or to anyone else.
- To save you retyping, your answers and your theme choice are remembered in your browser's local storage on this device only. Clearing this site's data in your browser removes them.
- Model files you import or export stay on your device unless you choose to share them.
Visit statistics
We use Cloudflare Web Analytics to count visits. It sets no cookies and does not build a profile of you. It records the page viewed, the site that linked to it, your approximate country, your browser type and how quickly the page loaded. It never sees what you enter in the calculator.
Hosting
The site is served by Cloudflare. Like any web host, Cloudflare processes technical connection data such as IP addresses to deliver pages and protect the site from abuse.
What we cannot control
Browser extensions, AI assistants built into browsers, and other software on your device can read anything shown on any web page, including this one. Check what you have installed if that concerns you.
Accounts in the future
We may later offer optional accounts for saving your history. Signing up will always be optional, it will come with its own clear privacy terms before you share anything, and the calculator will keep working without an account.
Open source
The code for this site is public on GitHub, so you can check what it does. If you run your own copy, it does not include our visit statistics.
Contact
Questions: info@openlifemodel.com