Terms of Service

Using the service

Lango helps users learn from imported reading material, extracted text, saved vocabulary, and related study flows. You may use the service only in compliance with applicable law and these terms.

Account and use rules

• Use the service lawfully and do not try to abuse, reverse engineer, overload, scrape, or disrupt it.
• Do not upload malware, harmful files, illegal content, or material that violates another person's rights.
• You are responsible for the content you upload or submit and for ensuring you have the rights to use it.
• Keep your account credentials secure and tell us if you believe your account has been compromised.
• We may suspend or limit accounts that create security, legal, product, or operational risk.
• The service can change over time, including features, limits, availability, and future pricing.

Your content

• You keep ownership of content you import or create.
• You grant us permission to process that content only as needed to provide, secure, troubleshoot, and improve the service.
• You should not rely on AI-generated translations, explanations, or exercises as perfect or professional advice.

Learning outputs

Translations, explanations, vocabulary suggestions, OCR results, and exercises may contain mistakes. You are responsible for checking important information and deciding how to use study outputs.

No guarantee of uninterrupted service

We work to keep the product available and reliable, but we do not guarantee uninterrupted access, permanent feature availability, error-free operation, or preservation of every item of user content.

Beta limits

The beta is free to use with monthly limits for core features. Future commercial plans, renewal terms, cancellation flows, and billing provider details will be published before payments go live.

Contact

Questions about these terms can be sent to zhiyao-xu@outlook.com.