Last updated: November 2026
By using Lystra you agree to these terms. This is a plain-language summary of how the service may be used and is not legal advice.
Lystra is a studying tool that uses AI to help you learn using active methods. Content generated by the AI may be inaccurate or incomplete. Do not rely on it for professional, legal, medical, or financial decisions, and always verify important information independently.
How we handle your personal data is described in our Privacy Policy, which forms part of these terms.
You are responsible for activity under your account and for keeping your login secure. You must provide a valid email address and use the service only if you are permitted to do so under applicable law.
Paid plans are billed through Stripe on a recurring basis until cancelled. You can manage or cancel your subscription from the app's billing portal. Fair-use message limits apply to both free and paid tiers.
You may delete your account at any time from Account Settings. We may suspend or terminate access for violations of these terms or to protect the service.
We may update these terms; continued use after changes means you accept them.
These terms are governed by the laws of Sweden, and any disputes are subject to the courts of Sweden. This does not deprive you of any mandatory consumer-protection rights you have under the law of your country of residence.
Questions? Email contact@lystra.chat.