Privacy statement

Dutch Studio is made by Gone With Us Studio (KvK 42074981). We are responsible for the processing described here. Questions or requests: contact@dutchstudio.app.

The short version. Dutch Studio is an app for iPhone and Android; this website only tells you about it. You do not need an account. Without one we do not collect your name, e-mail, answers or progress: they stay on your phone. If you choose to create an account, we store your e-mail address and your study progress, only so you can sign in and see the same progress on every phone. There are no passwords: you sign in with Apple, Google or a one-time code we e-mail you. If you ask the AI teacher to check a speaking or writing answer, that one answer is sent for checking and not kept. Dutch the app has no recording for is read aloud by Google Cloud Text-to-Speech, which gets only that Dutch text. If you buy something in the app, Apple or Google take the payment, RevenueCat checks the purchase for us, and we keep what you bought with your account. No analytics, no advertising, no tracking, and this website sets no cookies.

What is stored on your phone. Your progress (finished lessons, stars, XP and streak), your words and mistakes, your level-test result and your settings (daily goal, reminders, exam dates, sounds) are stored in the app on your phone. Without an account we never receive them. They stay until you delete the app.

If you create an account. You sign in with Apple, with Google, or with a one-time code by e-mail; there is no password. We store your e-mail address, a name if you give one, the date you signed up and a copy of the progress listed above (not device settings such as your voice choice), in a database at Cloudflare (D1). If you choose Continue with Google, Google tells us your e-mail address, that it is verified and an identifier for your Google account, which we store to recognise you next time; we store no password and get nothing else from your Google account (not your name or photo). Google's own privacy policy covers what happens on Google's sign-in page. If you choose a code by e-mail, we use your e-mail address to send you a six-figure sign-in code, through Cloudflare's e-mail service (Cloudflare Email Sending) from noreply@dutchstudio.app; we keep only a scrambled (hashed) copy of the code, for at most 10 minutes, and never write it to a log. We use the address for these codes and nothing else. Accounts made before November 2026 with a password: the scrambled copy of that password is deleted when you first sign in with a code, Google or Apple, and with your account. Where the app offers Sign in with Apple, Apple tells us an identifier for your Apple ID and your e-mail address (or a private relay address Apple creates, if you choose to hide yours); we store the identifier to recognise you next time and nothing else from Apple. The app keeps a sign-in key in your phone's secure storage (the iOS Keychain or Android Keystore) for up to 180 days, and your progress syncs between the phones you sign in on. An account is for one person and is signed in on at most two devices at a time: signing in on a third signs out the one used least recently, and we keep a coded copy of that sign-in key for 30 days so that device can tell you why. For each phone or tablet signed in to your account we keep the random number the app made for it, whether it is an iPhone or an Android device, the app's version and when it last synced, so your progress reaches the right devices. If you had an account on the Dutch Studio website before it closed in October 2026, the progress stored with it comes into the app when you sign in. We process this data because you asked for an account (performance of a contract, art. 6(1)(b) GDPR). We keep it until you delete your account: Me › Settings › Account › Delete my account removes your e-mail address, your sign-ins and your saved progress at once (without the app: see dutchstudio.app/delete-account); the progress on your own phone stays until you delete the app. We never sell or share it and never use it to contact you or for advertising.

Hosting. The app's server, this website, the lessons and recordings the app downloads, and the account database are hosted by Cloudflare (Cloudflare Workers and D1). Like any web host, Cloudflare processes your IP address and technical request data to deliver them and protect them against abuse. Cloudflare acts as our processor; it may process data outside the EU under the EU Standard Contractual Clauses and the EU–US Data Privacy Framework. We do not use Cloudflare's analytics on this site.

The AI teacher (speaking and writing checks). When you ask for AI feedback on an answer in the app, the recording or text you made for that check, the question or task, your level-test level and, if your account has a name, your first name (so the feedback can address you by it) are sent to our server and checked by Cloudflare Workers AI (a speech-to-text model and a language model run by Cloudflare as our processor). We use them only to send you the feedback; we do not store the recording, the text or the feedback, and they are not used to train models. To prevent abuse we count checks per account, or, without an account, per phone (a random number the app makes for this, nothing else about the phone) and per IP address, for up to a day. The same goes for looking up a word: when the app's own word lists do not have a word you tapped or typed, that word (and the sentence it was in) is sent to Cloudflare Workers AI to translate. The word, its sentence and the translation are kept, without anything about who asked, so the next learner who taps the same word gets the answer at once. The feedback and the words it adds stay on your phone (and in your account, if you have one). We process this because you asked for the check (art. 6(1)(b) GDPR). The microphone is only used while you record, after your phone asks your permission. Do not record or write personal details you would not want to share.

Speaking practice on the phone. Exercises where you say a sentence aloud, and the score of a speaking mock exam, use your phone's own speech recognition (Apple's on an iPhone, Google's on most Android phones) to turn what you say into text. For a mock exam the app asks for recognition on the phone itself; depending on the phone and its settings, a recording may still be sent to Apple or Google for this; their privacy terms apply, and we do not receive it.

Purchases in the app. In the Dutch Studio app you can subscribe to Pro or Pro Coach (with a 3-day free trial for new subscribers), shown in the app with their price before you buy. Apple (App Store) or Google (Google Play) take the payment and sell it to you; we never see your card or bank details. To check purchases we use RevenueCat (RevenueCat, Inc., United States) as our processor: the app sends RevenueCat your account number with us (a number, not your e-mail address), the store's receipt for the purchase and the technical details needed to check it (the app version, the phone's operating system and the store's country). RevenueCat then tells our server what you bought: the product, the store, the store's transaction number, the price and when it starts and ends. We store that with your account (what you may use now, and each purchase once), so what you bought works on every phone you sign in on. RevenueCat may process this data in the United States under the EU Standard Contractual Clauses. We process it to give you what you bought (art. 6(1)(b) GDPR) and keep the purchase records for seven years because Dutch tax law requires it (art. 6(1)(c) GDPR). If you delete your account, what you may use is deleted with it; the purchase records are kept for those seven years without your account or e-mail. Buying needs an account; everything that is free works without one.

Voices. Almost every Dutch sentence of the course is a recording we made in advance (with Google's text-to-speech) and that the app downloads from our server. Dutch that has no recording (the AI teacher's corrected and model answers, a word or phrase you add yourself, the odd sentence we have not recorded yet) is read aloud in the same voice: the app sends that Dutch text to our server, which has it spoken by Google Cloud Text-to-Speech (Google Ireland Ltd. as our processor) and keeps the resulting audio so the same sentence is not sent again. Google receives only the Dutch sentence (for a corrected answer, that is your own answer with its mistakes fixed, so do not write personal details you would not want read aloud) and the voice to use: no account, e-mail, name or phone number, and our server sends it, not your phone. To prevent abuse we count new sentences per account or phone (the random number described above) and per IP address, for up to a day. Google may process the text outside the EU under the EU Standard Contractual Clauses. We process it to read the course to you (art. 6(1)(b) GDPR). Without a connection, or if that fails, the sentence is read by your phone's own speech voice, as set in your phone's settings.

Reminders. The app's reminders are scheduled on your phone itself. We do not receive them and cannot send you anything.

Links. We link to other websites (DUO, inburgeren.nl, practice sites, YouTube and others). When you open them, their own privacy statements apply. Fonts are served from this site, not from Google.

Your rights. Without an account we hold no personal data about you; your data is on your phone and you control it. With an account you can see your stored progress on any phone you sign in on and delete everything yourself under Me › Settings › Account. You can also ask us at contact@dutchstudio.app to see, correct, export or delete your data, and you can complain to the Autoriteit Persoonsgegevens (autoriteitpersoonsgegevens.nl).

Changes. If this statement changes, the date below changes. Last updated: 12 November 2026.