The best reading app for the new iPhone Duo

Warm words with fellow worms.

Wormies turns your book club into one shared book. See where everyone is, leave notes on the lines you love, and never get spoiled. A showpiece on iPhone Duo, at home on every iPhone and iPad.

Free. iOS 26 or later on any iPhone or iPad. Works with the DRM-free EPUB and PDF files you already own.

Turn pages across the fold

Open your Duo and the hinge becomes the spine. Drag a page and it lifts, turns over, and lands with a soft tap. Close the phone and keep reading on the outer screen.

See where your club is

Everyone's little worm sits on the progress rail under the pages. Tap one to see the chapter, how far ahead or behind, and whether they're reading right now.

Notes without spoilers

Highlight, comment and react on any passage. Friends only see your notes once they reach that line. The Spoiler Shield is on by default, and you can peek whenever you like.

Fall into the Wormhole

Every note, reaction and milestone from a book in one timeline, by time or by chapter. No hunting through pages for the conversation.

How it works

Three steps, one minute. Clubs can be two people or twenty.

  1. 1

    Start a book club

    Name it, pick your worm color, and send friends a link. They join from the link in one tap.

  2. 2

    Point to the same book

    Each person chooses their own copy from Files. Wormies checks the copies match and tells you if they don't.

  3. 3

    Read, mark, react

    Read at your own pace. Leave a thought on a line. Watch the club catch up, and nudge the one who hasn't.

Your books stay yours

Wormies reads the DRM-free EPUB and PDF files already on your phone, iPad or iCloud Drive. Book files never leave your device. We compare a fingerprint so your club knows you're on the same copy, and that's it.