Privacy policy
Last updated: 2026-10-06
Data we collect
All calculators work without signing in. Calculator inputs stay in your browser, along with local history and favourites, rather than being stored on our servers.
Google sign-in
When you sign in with Google, we receive your name, email address and profile picture to create your account and save personal records, such as health tracking. We do not access your password or other account data.
Your data privacy
Your personal saved records are visible only to you. Other users cannot view or edit them.
Advertising and cookies
The site displays Google AdSense ads. Google and its partners may use cookies to show ads based on your visits. You can disable personalised ads in Google ad settings.
Analytics
We use Google Analytics to understand the most frequently used pages and calculators through aggregated statistics, without personally identifying data.
Deleting your data
You can delete saved records at any time or request deletion of your account by contacting us through the site.