Cookie policy
Which cookies and storage we use and how to control them.
Last updated: September 1, 2026
Essential storage
We use browser storage to keep your plan while the tab is open (erased when you close it) and to remember your unit preference and consent choice. These are necessary for the site to work and do not track you.
If you sign in to your saved plans, a first-party session cookie (fp_user, HttpOnly, 30 days, sent only to the saved-plans API) keeps you signed in on that device. Signing out or deleting the account removes it.
Analytics (with consent)
Google Analytics 4 cookies (_ga, _ga_*) help us understand aggregated usage. They are only set after you accept.
Advertising (with consent)
Google AdSense may use cookies to show and measure ads. Without consent, only non-personalised ads are requested.
Managing your choice
You can change your decision at any time via 'Cookie settings' in the footer, or clear site data in your browser.