Privacy Policy
Last updated: 7 October 2026
LessonPop turns a school lesson into a quiz for your child. We built it to collect as little as possible: no accounts, no names, no ads, no tracking. This page explains exactly what happens to your data.
LessonPop is made by 4SaveSoft (Vardarska 1B, 21000 Novi Sad, Serbia), which is responsible for your data (the "controller"). Contact: [email protected].
The short version
- No account. We never ask for your name, email, phone number or your child's real name.
- Lesson pages are deleted as soon as the quiz is made. We don't keep them.
- Your child's nickname, grade and scores stay on your device. They are not sent to us.
- No ads, no analytics, no tracking, and we never sell or share data for marketing.
- Payment is handled by Apple. We never see your card or Apple ID.
What happens when you make a quiz
- You photograph lesson pages or choose a PDF. The app sends the pages to our server, together with your child's school grade, the app language and the quiz settings (number and types of questions). The nickname is not sent.
- Our server reads the text (PDFs with text are read on our own server) and sends the lesson to Anthropic's Claude AI, which writes the questions.
- The quiz comes back to the app. The lesson pages are then deleted. They are processed in memory and are never stored on our server.
We keep the finished quiz (questions, answers, and the short lesson sentences each question is based on) so we can mark written answers later, for re-checks and practice.
When your child types a written answer, the question, the expected answer and your child's answer are sent to our server and to Claude to be marked. The answer is not stored.
What we keep, and for how long
| Data | Why | How long |
|---|---|---|
| Lesson pages (photos, PDFs) | To make the quiz | Deleted as soon as the quiz is made |
| Quizzes (questions, answers, short quotes from the lesson) | To mark written answers, re-checks and practice | 13 months |
| Written answers | To mark them | Not stored |
| A random ID for your device and family, and Apple's App Attest key | To make sure only the real LessonPop app can use the service, and to apply your subscription | While you use LessonPop, or until you ask us to delete it |
| Quiz counts with a scrambled (hashed) IP address | Fair-use limit and abuse protection | 62 days |
| Cost records (random family ID, amount of AI used) | Keeping AI costs under control | 13 months |
| Server logs (IP address, time, address requested, result) | Security and troubleshooting | 14 days |
| Subscription status | To unlock quizzes | While your subscription is active, and as long as needed afterwards for records |
The IDs are random. They are not connected to your name, email or Apple ID.
On your device only
Your child's nickname, grade, quizzes and scores, and your grading settings, are stored on your iPhone or iPad. Deleting the app deletes them.
Who else processes data
We only use services we need to run LessonPop:
- Anthropic (Claude AI, USA) writes the questions and marks written answers. Anthropic does not use this data to train its models, and keeps it only for a limited time under its commercial terms. See anthropic.com/legal/privacy.
- Hetzner Online GmbH (Germany) hosts our server.
- RevenueCat (USA) records which family has an active subscription, linked to the random family ID. It receives the purchase information Apple provides and basic device information (such as app version and country). See revenuecat.com/privacy.
- Apple handles payments, subscriptions, refunds and App Attest. Apple's privacy policy applies.
- Cloudflare delivers this website. It does not receive anything from the app.
When data goes to the USA, it is protected by safeguards such as the EU Standard Contractual Clauses or the EU-US Data Privacy Framework.
Children
LessonPop is made for parents and guardians, who set it up, upload lessons and manage the subscription. Purchases and settings sit behind a grown-ups check.
We don't ask for a child's real name, photo, location or contact details. A lesson page can sometimes show a name or handwriting. If you prefer, cover the name before taking the photo. Either way, the pages are deleted as soon as the quiz is made.
Legal basis (EU/UK)
We process data to provide the service you asked for (contract), and to keep it secure and protect it from abuse (legitimate interests). We don't use consent-based tracking.
Your rights
You can ask us to access, correct or delete your data, or object to how we use it, by writing to [email protected]. Because we don't know who you are, please tell us roughly when you started using LessonPop and, if you subscribed, the order ID from Apple's receipt email. This helps us find your family's data. You can also complain to your data protection authority.
Changes
If we change this policy, we will update the date at the top and, for important changes, tell you in the app.
Contact
4SaveSoft, Vardarska 1B, 21000 Novi Sad, Serbia. Email: [email protected]