Terms of Service
By using Paira you agree to these terms.
Service
Paira is a free, ad-supported web app for creating and studying word sets. We may modify or discontinue the service without prior notice.
Account
Sign-in is only via Google or Apple. You are responsible for your account's security. Users under 13 should use the app with parental supervision.
Content
You are responsible for the sets you create. Public sets are visible to and copyable by other users. Sets containing copyright infringement, hate speech or illegal content may be reported and removed; repeated violations may lead to account termination.
Reading & uploaded books
Books you upload (TXT/EPUB) stay private to you and are never shared. By uploading a file you warrant that you have the right to use it for your personal study. For copyright takedown requests, contact hello@example.com (DMCA / Law 5651 notice-and-takedown). Public-domain library works come from Project Gutenberg (English, with the PG license stripped) and Wikisource (Turkish, CC BY-SA 4.0). Dictionary data derives from Wiktionary/kaikki.org (CC BY-SA); difficulty levels use the NGSL (CC BY-SA 4.0).
Ads & purchases
The app shows Google AdSense ads. "Remove ads" is a one-time purchase tied to your account and subject to Lemon Squeezy's refund policy.
Disclaimer
The service is provided "as is" with no guarantee of uninterrupted or error-free operation. We recommend exporting important sets as a backup.