Legal
Cookie Policy
Where cookies and browser storage are used and how to control them.
Last updated
Why we use cookies
The calculators work without cookies. This site and the Avenpa login set only the three cookies below; other cookies are used for advertising and visit statistics.
Third-party vendors, including Google, may use cookies to serve interest-based advertising.
| Name | What it does | How long |
|---|---|---|
| ta_mid | Random ID that keeps favorites and recently viewed tools separate per browser (sent only with favorites requests) | 400 days (renewed on each visit) |
| avenpa_session | Keeps you signed in (set by the Avenpa shared login, only when signed in) | 30 days |
| avenpa_ref | Referral code when you arrive through a blog referral link | 30 days |
Browser storage
Besides cookies, this browser's storage (localStorage, sessionStorage) holds the display setting (dark mode), the AI assistant chat (gone when you close the tab), a copy of your favorites, the letter box, the last inputs of the date, time and unit calculators, and tools saved on this device. Apart from the favorites copy, none of it is sent to the server.
Managing cookies
You can block or delete cookies and site data in your browser settings. Doing so also removes this browser's favorites, letter box and sign-in.
To turn off personalised ads, use Google Ad Settings.