Casibook

A pocket library that runs on trust. Borrow any title for 14 days, return on time, keep your 5.0. Late returns drop your rating by 0.1 — every time.

Casibook is a small, friendly library that lives on your phone.

Browse 80+ hand-picked books across classics, sci-fi, mystery, biography, business, history, literary fiction, and more. Every book has a real review written for the app — no scraped Goodreads quotes, no marketing fluff.

When you find one you like, borrow it. You get 14 days to read it before you're due to return.

Casibook trusts you to return on time. There's no fine, no late fee — just your rating. Everyone starts at 5.0. Return a book late, and your rating drops by 0.1. Return on time, and it stays where it is.

That's the whole loop. Books, time, your rating.

Features • 80 books with original reviews (more added on a regular cadence) • Search by title, author, or genre • 14-day borrow timer with live countdown • Return tracking and full history • Profile with rating, on-time/late stats • Up to 3 active loans at once • Push notifications via OneSignal (book due soon, overdue) • Dark, modern design — yellow on black

Casibook doesn't sell your data, show ads, or shove a paywall in your face. It's a side project, not a subscription factory.

Bring your reading list back from "someday" to "this week."