Privacy policy
Updated on 14 October 2026.
Flipvo is a vocabulary trainer. This page describes what data the site stores and why.
What data is stored
Account data: login, name, email (if you provided it) and your password as a secure hash — the password itself is not stored. When you sign in with Google: the permanent Google account identifier and your name; the Google email is not stored. Learning data: your languages, sections, cards, progress and lesson history. To protect against abuse (bots and password guessing), the site temporarily keeps an anonymised hash of the IP address for no longer than a day — the IP itself cannot be recovered from it.
Why
Only to make the site work: to sign you in, show your dictionary and track your progress. Each user sees only their own data.
Cookies
The site uses only necessary cookies: to keep you signed in (30 days), to remember the interface language and theme, and a temporary cookie during Google sign-in (10 minutes). There are no ads, analytics or third-party trackers.
Sharing with third parties
Your data is not sold or shared. It is stored with the providers the site runs on: Vercel hosting and the Neon database (servers in Europe, Frankfurt). When you sign in with Google, Google processes the sign-in data under its own policies.
Deleting data
You can delete any language with all its cards and history right on the site. Your whole account with all its data is deleted from the menu under your name in the site header: “Delete account”. Deletion is immediate and permanent.
Changes
If this policy changes, the updated version will appear on this page.