Privacy
This summary explains the main categories of data used to operate the app, measure product usage, and serve advertising on public pages.
Essential product data
We use essential cookies and related storage to keep users signed in, preserve calculator state, maintain security protections, and remember theme preferences.
If you create an account, we store the account details and saved scenarios needed to provide the service.
Analytics
If you choose to enable analytics cookies, we use analytics tooling to understand feature usage, diagnose issues, and improve the product.
Analytics is optional and can be declined while still using the core calculators.
Advertising
This site may display ads delivered by Google AdSense on public content and calculator pages.
Where required, consent for advertising is handled through Google Privacy & messaging rather than the app's own cookie banner.
Your choices
You can choose whether to enable analytics cookies when the consent banner appears.
For advertising in supported regions, Google Privacy & messaging provides the relevant consent and privacy controls.