Terms of Service
Crux — LearnSync Lab
These Terms of Service (the "Terms") set out the conditions for using the iOS app "Crux" (the "App") provided by LearnSync Lab ("we", "us"). By using the App, you are deemed to have agreed to these Terms.
1. Account
- An account is required to use the App.
- You are responsible for managing your own account credentials.
2. Paid Plans
- The App offers a paid plan, "Crux Pro". It is available as auto-renewable subscriptions (1 month, 6 months, or 12 months) and as a one-time purchase.
- Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and the renewal fee is charged to your Apple account. You can cancel from your device's Settings → Apple Account → Subscriptions.
- Payments and refunds are governed by Apple's terms. We cannot issue refunds directly.
3. Prohibited Conduct
You must not:
- violate laws or public order and morals;
- interfere with the operation of the App;
- decompile, reverse engineer, or otherwise analyze the App;
- gain unauthorized access or use another person's account.
4. Intellectual Property
All intellectual property rights in the App and related content belong to us or to third parties holding legitimate rights.
5. Disclaimer
- The App supports managing and recording your studies; it does not guarantee any study outcomes.
- We do not guarantee the accuracy or usefulness of AI-generated reviews or advice.
- We are not liable for damages arising from use of, or inability to use, the App, except in cases of our willful misconduct or gross negligence.
- All or part of the App may be unavailable due to network failures, third-party service outages, or similar causes.
6. Changes to or Termination of the Service
We may change the App, or suspend or terminate its provision, with prior notice to users (except in urgent cases).
7. Changes to These Terms
These Terms may be updated as necessary. The revised Terms take effect when posted on this page.
8. Governing Law and Jurisdiction
These Terms are governed by the laws of Japan. Any dispute relating to the App shall be subject to the exclusive jurisdiction of the Tokyo District Court in the first instance.