Last updated: September 19, 2026
Booklet is a language-learning app: you read books in a foreign language, and the words you look up become flashcards and exercises. This policy explains what we collect while you do that, why, who else sees it, and what you can ask us to do with it.
Booklet App ("we", "us") is based in Italy and is the data controller for the information described here. European data protection law (the GDPR) applies to it.
We use a cookie to keep you signed in, and browser storage to remember your settings and to tie an error report to the session it came from. We set no advertising or cross-site tracking cookies.
When you look up a word, ask for a sentence to be read aloud, or work through an exercise, the text involved — the word, its sentence, and sometimes the answer you wrote — is sent to Google's translation, text-to-speech and generative AI services so that it can be processed. Only the text needed for that request is sent; your name, your email and your account id are not.
We do not use your content to train models of our own, and we do not sell it to anyone.
We keep the list of companies that process your data on our behalf short, and each one receives only what its job requires:
Beyond that, we disclose personal data only when the law requires it, when it is necessary to protect our rights or someone's safety, or with your consent. If Booklet is ever sold or merged, your data would transfer with it, and we would tell you before it became subject to a different policy.
Our providers operate globally, so your data may be processed outside the European Economic Area — in particular in the United States. Where that happens, the transfer is covered by the European Commission's standard contractual clauses or an equivalent safeguard in our agreement with the provider.
Your account and everything attached to it — your library, your words, your progress — is kept for as long as the account exists, because that is what the app is for. Ask us to delete the account and it goes, bar anything we are legally required to retain.
Session recordings are deleted after 30 days. Logs and error reports are kept for a short period, for diagnosis. Translations and dictionary results are cached without being tied to you, so they survive deletion in a form that identifies nobody.
Under the GDPR you can ask us to:
Some of this you can do yourself: your settings are editable in the app at any time. For the rest, email us at the address below and we will answer within one month. If you think we have got it wrong, you can complain to your local data protection authority — in Italy, the Garante per la protezione dei dati personali.
Connections are encrypted, passwords are hashed by our authentication provider, and access to the database is limited to what the service needs. No method of transmission or storage is completely secure, though, so we cannot promise absolute security.
Booklet is not directed at children under 14, and we do not knowingly collect their personal data. If you are a parent or guardian and believe your child has given us theirs, contact us and we will remove it.
The app may link to sites we do not run. We have no control over them and take no responsibility for what they do with your data — their own privacy policy governs your visit.
We may update this policy. The new version is posted on this page with a new "Last updated" date, and if the change is significant we will tell you by email or in the app before it takes effect.
Questions about this policy, or a request about your data? Email e.courthoud@gmail.com.