READTWIN · Terms
Terms of use
Understand content permissions, AI output and local storage before using ReadTwin. Updated 11 October 2026.
Books and content permissions
Import only books you are permitted to possess and use. ReadTwin does not remove DRM or provide pirated ebooks. Public-domain status varies by country and edition; check the permissions applicable where you are.
AI output
Translations, definitions and guides are reading aids and may contain omissions, mistranslations or factual errors. Review the original and do not treat AI output as professional advice or a verified factual source.
Costs and availability
The site translation service has request and daily usage limits. Your provider bills use of a personal API key under its own terms. Provider outages, quotas and maintenance may affect availability. Service is not guaranteed to remain free, unlimited or uninterrupted.
Local storage and backups
Back up regularly. Clearing site data, reinstalling the browser, changing devices or private browsing can remove local data. Restoring a backup merges records and may overwrite matching IDs.
Reasonable use
Do not bypass limits, attack endpoints or use custom URLs to access the site’s internal network. External AI and WebDAV services you configure have their own terms and privacy policies.
Browser storage can be cleared by your browser. Export a backup regularly.