Privacy
Last updated 2026-11-09
Your free account
The practice exam needs a free account. When you create one we store your email address, your first name if you give it, your password (only as a hash, which is not readable, held by our database provider Supabase), the date you confirmed your email, and whether you ticked the box for study emails. Every practice attempt you finish is saved to your account: the mode, the date, your score, a breakdown by topic and the answer you chose for each question with the time you took, so you can see your history, retake an exam and retry the questions you missed. Only you can read your saved attempts when signed in.
Sign-in links, confirmations and password resets are sent to you by email. You can delete your account and everything in it, your attempts and answers included, at any time from My account(the “Delete my account” button). Deletion is permanent.
Your browser keeps your sign-in on your device so you stay signed in. If saving an attempt fails, the attempt waits in your browser's local storage and uploads the next time you are signed in on this page.
Sign-up forms and the audiobook claim
The sign-up form asks for your email address and, if you like, your first name. We also store which book or free tool you asked about, so we know what to send you.
The audiobook claim form (for paperback buyers) asks for the claim code printed in the book, your email address and, if you like, your first name. We keep your email, your optional name, the book, the date you claimed, and your consent to receive the audiobook link and study emails. The claim code itself is checked on our server and is not stored with your details.
Where it is kept and why
Sign-up details are kept in Resend, our email service. Account and audiobook claim details are kept in Supabase (our database) and Resend. We use them to send you the audiobook link, the free tools you asked for and a few study emails. Every email has a one-click unsubscribe link, and unsubscribing stops all emails. You can ask us to delete your details at any time by emailing books@hellonavigo.com. To stop abuse, a claim also records a hashed (not readable) form of your IP address for one to two days.
What we do not do
- We do not sell your data.
- We do not run advertising trackers or analytics on this site.
- Your browser keeps small notes on your own device (your sign-in, that you have signed up, and any attempt waiting to upload). They are not used to follow you around.
Your choices
Unsubscribe from any email in one click, or write to books@hellonavigo.com and ask us to delete your details. If you have an account you can delete it yourself from My account.