Scrine – Joyscroll books. Read any book one sentence at a time

Scrine is an app that converts books, PDFs, and articles into single-sentence cards designed to make reading feel like scrolling through a social media feed, addressing the common problem of unfinished books. The app includes features like multiple reading modes (cards, page, stream, and flash), an AI tutor powered by Claude that explains difficult passages, chapter quizzes, and access to thousands of free public-domain books, with a free tier and paid subscription options starting at $3.99/week.