Thus Far
The Thus Far app icon: Gus the moon peeking out from behind a page

A reading companion that has read exactly as much as you have.

Thus Far is an iPhone app for people who love physical books. Track your reading chapter by chapter, keep a streak going, and talk about the story with Gus — without ever being spoiled.

Coming to the App Store in fall 2026

Keep your place

Check in as you read — a chapter on the train, a few pages before bed. Thus Far keeps your bookmark, your streak, and your reading history in one quiet, beautiful timeline. A home-screen widget keeps the streak where you can see it.

A feed that never spoils

Every note, nudge, and discussion in Thus Far is gated to the chapter you're actually on. Nothing from further ahead ever reaches your screen — not in the feed, not in a notification, not once.

Gus reads along

Gus is the moon who reads with you — an AI companion who knows the book only as far as you do, so you can ask questions, retell chapters, and think out loud the way you would with a friend on the same page. Gus runs on Apple's on-device intelligence and Private Cloud Compute: your reading stays private, always.

Your books, your pages

Scan a book you own to build its companion — chapter summaries and gentle reminders compiled from your own copy, for your own reading. Thus Far is made for the books already on your shelf.