Study Coach

Terms of Use

Last updated: October 4, 2026 · Developer: Lumii

1. The service

Study Coach (DersKoçu in Türkiye) is a study companion for middle and high school students. By using it you accept these terms together with Apple's standard Licensed Application End User License Agreement.

2. Who may use it

The App is for students. Children under 13 may use it, particularly the AI features, only with the knowledge and consent of a parent or guardian. You need an Apple Account to buy tokens and to use the AI features.

3. Token packs

AI features run on tokens. Packs are one-time purchases through Apple, not subscriptions, and tokens do not expire. Each answer deducts 5 times the number of tokens the AI provider used. A typical question and answer uses about 5,000 tokens; photos and long chats use more. Prices are shown in the App. There is no free AI usage.

Refunds are handled by Apple, which processes the payment: reportaproblem.apple.com. Refunded tokens are removed from your wallet. Unused tokens are lost when an account is deleted.

4. Rewarded ads

You may optionally watch a rewarded ad for an extra quiz attempt. Ads are never required to use the App.

5. AI answers can be wrong

AI answers are meant to help you learn. They can be incorrect or incomplete. For anything important, rely on your textbook and teacher. Do not put personal information in questions or photos.

6. Acceptable use

Do not misuse the App, try to bypass the token system, reverse engineer it, overload our servers or use it to create harmful content.

7. Content

Lessons, questions and design are owned by Lumii or used under licence. Science and geography images from NASA are public domain. You may use the content for your own studying, not to resell it.

8. No affiliation, no guarantee

The App is independent. It has no connection with the Turkish Ministry of National Education (MEB), ÖSYM, the OECD (PISA-style questions are our own and are not affiliated with the OECD), or any school, publisher or exam board. The content supports your studying and does not guarantee exam results.

9. Account deletion and termination

You can delete your account in the App at any time. We may suspend accounts that break these terms.

10. Liability

The App is provided "as is". To the extent permitted by law, Lumii is not liable for indirect damages or for decisions made based on AI answers.

11. Governing law

The laws of Türkiye apply, without affecting mandatory consumer rights in your country of residence.

12. Changes and contact

We may update these terms; the current version is on this page. Questions: sezerta@gmail.com. See also our privacy policy.