Effective: 13 November 2026
Nook is provided by Gleb Safronov, self-employed developer (autónomo), Carrer de Llorens i Barba, 54, 6-1, 08025 Barcelona, Spain (“we”, “us”). We are the controller of the personal data described here. Contact: [email protected].
The video link, the language of the app, and the names of your collections (so Nook can suggest where the video belongs). Your manual moves of videos between collections are sent with the request so suggestions learn from them; they aren’t stored separately. Our server fetches the public video, sends it to Google Gemini for analysis and deletes the video file. The result (title, recipe, places and so on) is cached by link for 30 days so the same video isn’t analysed twice; the cache isn’t linked to you.
For summaries, comparisons, flashcards and “Fact or hype?”, the text of the breakdowns you selected is sent to Google Gemini. Fact-checks use Google Search through Gemini to find sources.
Names and addresses of places from your videos are sent to OpenStreetMap Nominatim to find map coordinates.
The app creates a random identifier and stores it on your phone and in its Keychain. We use it only to count how many breakdowns, AI actions and fact-checks you’ve used, and to stop abuse.
Payments are processed by Apple; we never see your payment details. We use Adapty to check whether your Nook Pro subscription is active. Adapty receives a random profile identifier, your purchase and subscription status, and basic technical data about the device and app version. Our server stores only the Adapty profile identifier together with your monthly usage counters.
If Auto backup is on (you can switch it off in Settings), a copy of your library is stored on our server under a random backup code kept in your phone’s Keychain. It contains your videos’ links and breakdowns, collections, lists, notes and app settings. It isn’t linked to your name, email or device.
Only when you tap “Share link”, a copy of that one collection (names, short descriptions, links to the original videos) is published at a link that anyone who has it can open. “Remove link” deletes the copy.
If you send feedback from the app, we store your text, the app version, the screen you sent it from and your device identifier. If you email us, we use your email address only to reply.
Like any internet service, our hosting provider Cloudflare processes your IP address to deliver requests and protect the service from attacks. We don’t store IP addresses in our own databases. We keep aggregated, anonymous usage counts (for example, how many videos were analysed per day) for 90 days.
Your location, if you allow it, is used only on the phone to sort places near you and is never sent to us. Reminders are scheduled locally on the phone.
Each provider receives only what it needs for its task and acts on our instructions. Some of them are in the United States. Transfers outside the EEA rely on the EU–U.S. Data Privacy Framework where the provider is certified, or on the European Commission’s Standard Contractual Clauses.
You can ask us for access to, correction or deletion of your data, restriction of or objection to processing, and a copy of your data. Because Nook has no accounts, we can find your data only by your recovery code or device identifier, which you can copy in the app’s settings. Write to [email protected]. You can delete your library at any time by deleting the app, and the server backup by turning off Auto backup and confirming deletion. If you’re in the EEA, UK or Switzerland, you can also complain to your data protection authority; ours is the Spanish Data Protection Agency (aepd.es).
California residents: we don’t sell or share personal information as defined by the CCPA, and we don’t use sensitive personal information.
Nook isn’t directed to children under 13 (or under 16 where local law requires). We don’t knowingly collect data from them. If you think a child has sent us data, contact us and we’ll delete it.
If we change this policy, we’ll update the date above and, for significant changes, tell you in the app.