Last updated: October 8, 2026
YazidiBooks is an educational app for exploring Yazidi culture through books, quizzes and vocabulary. This policy describes, in plain language, what information the app collects, how it is used, and the choices you have. The policy is currently available in English only.
Who is responsible for your data
YazidiBooks is run by Khaleel Elias, a private individual based in Sweden, who is the data controller for the personal data described in this policy. You can reach the controller at info@yazidibooks.com. If you believe your data has been handled improperly you have the right to lodge a complaint with a data protection authority. In Sweden this is the Swedish Authority for Privacy Protection (Integritetsskyddsmyndigheten, IMY), imy.se. You may also complain to the authority in the EU country where you live.
Information we collect
Account details: your email address, full name and account role, provided when you register or sign in with Google or Apple. Profile details (optional): during the one-time profile setup you can tell us your age and which Yazidi caste you belong to. Both questions are optional and can be skipped. Your age is used to show you books suited to your age group, so you do not have to filter content yourself. Learning activity: reading progress and reading sessions, quiz submissions and scores, vocabulary review progress, points, achievements and reading streaks. Class membership: if you join a class with a class code, your teacher can see your name and your progress on class assignments. Teacher requests: if you ask to become a teacher, we collect the WhatsApp number and the message you provide so an administrator can contact you to confirm your request. Contact messages: if you write to us through the contact form on our website, we collect the name, email address and message you enter so we can reply. You can use the contact form without an account. Device settings: your language preference, the country your device region setting is set to, and, if you enable notifications, a push notification token. The country is the setting you chose on your phone, not your location: the app never asks for your location, and this setting is never worked out from GPS or your IP address. Usage data (only if you allow it): when you first open the app, it asks whether we may use app usage data to improve the app. If you choose Allow, the app records which screens are opened, which books and stories are opened and finished, quizzes taken and audio played, together with the app version, the type of phone, the app language, your account type and age group (for example 18 or over), the country your device region setting is set to, and a random identifier for this installation of the app. It never includes your name, email address, caste or anything you type. If you choose Not now, nothing is recorded. See "Usage data in the app" below. Diagnostics: the app, our website and our admin dashboard send crash and error reports (via Sentry) so we can find and fix bugs. These reports contain the error itself plus your device model, operating system, app version, and the country your device region setting is set to: the setting you chose, not your location. It tells us a problem affects one country without telling us anything about you. Reports are stripped of personal details before they are sent: no IP address, no account identifier, no email address, no phone number, no screen recording and no record of the screens you visited.
How we use your information
We use this information only to run the app: to save your reading and learning progress across devices, to power class features between teachers and students, to award points and achievements, to deliver notifications you have enabled, and to keep the app stable. We do not sell your information, show ads, or use your data for marketing. We use your device region setting to understand which countries our readers live in, so we can decide which languages and content to work on next. We rely on our legitimate interest in improving the app for this. Administrators see it only as a total per country, never next to your name. You can object by contacting us: we will then delete the stored country and stop collecting it. If you allow usage data, we use it to see how the app is used as a whole, for example which stories are finished most often and where people stop during sign-up, so we can decide what to improve and what to make next. We rely on your consent for this.
Caste information
During profile setup the app asks which Yazidi caste you belong to (Şêx, Pîr or Mirîd). This question is entirely optional: you can choose "Prefer not to say" or skip the setup screen, and the app works exactly the same. Under the GDPR this counts as special-category data, so we hold it to a higher standard: it is stored only with your explicit consent, it is visible only to app administrators — never to teachers or other users — it never affects what content you can access, and it is never shared outside the app. We use it only to understand the community we serve. You can remove it at any time by contacting us or by deleting your account.
Where your data is stored
Your data is stored with Supabase on servers located in the European Union (Ireland). A small number of service providers process data on our behalf: Google (sign-in), Expo (push notification delivery), Sentry (crash reporting, on servers in the European Union) and, only with your consent, Google Analytics, in the app and on our website. Each provider receives only the minimum needed for its task.
Cookies and analytics on our website
Our website, yazidibooks.com, can use Google Analytics to count visits and see which pages are read, so we can improve the site. Google Analytics sets cookies in your browser, so it runs only if you choose Accept on the cookie notice. If you decline, or make no choice, no analytics cookies are set. With your consent it records the pages you view, how you arrived (for example from a search engine), your device type and browser, and your approximate region. Google Analytics does not store IP addresses. Google processes this data on our behalf and may transfer it to the United States under the EU-US Data Privacy Framework. It is kept for up to 14 months. We rely on your consent for this. You can change your choice at any time with Cookie settings at the bottom of every page of the website.
Usage data in the app
If you choose Allow when the app asks, the app uses Google Analytics for Firebase to record the usage data described above. Google estimates your approximate region (country and city) from your internet connection and does not store IP addresses. No advertising identifier is collected, the data is not used for advertising, and it is never linked to your name, email address or account. Google processes this data on our behalf and may transfer it to the United States under the EU-US Data Privacy Framework. It is kept for up to 14 months. We rely on your consent for this. You can change your choice at any time in Profile, using Share usage data. Turning it off stops the recording straight away and resets the identifier on your device.
Children's privacy
Student accounts are managed by teachers. For students we collect only what classroom features need: name, learning progress and quiz results, plus the device region setting described above, which is only ever counted as a total per country, and usage data only if it was allowed. Student data is never used for marketing and is visible only to the student and their teacher. Usage data is never collected from a profile whose age is under 13: once the age given during profile setup shows that the user is under 13, the app stops recording usage data on that device, whatever was chosen before.
Data retention and deletion
Your account data is kept for as long as your account exists. You can delete your account at any time from Profile, using Delete Account. Deletion is immediate and permanent: your profile, reading progress, quiz submissions, vocabulary progress, points, achievements and any teacher request you submitted (including the WhatsApp number) are all removed. Messages you send through the website contact form are not linked to an account. We keep them while we handle your enquiry and for a reasonable period afterwards; you can ask us to delete yours at any time using the contact address below. Usage data is kept by Google Analytics for up to 14 months and then deleted automatically.
Your rights
Under the GDPR you have the right to access, correct or delete your personal data, the right to withdraw consent (for example for usage data, the caste question or notifications), and the right to object to or restrict its processing. Most of this you can do directly in the app; for anything else, contact us using the address below.
Changes to this policy
If this policy changes, we will update the date at the top of this page. For significant changes we will let you know in the app.
Contact
For any questions about this policy or your data, contact us at info@yazidibooks.com.