Question: Is there an app that allows me to step into the world of the book I'm reading, with interactive scenes and characters?

If you want an app that lets you walk around the world of the book you're reading, Hyra is a good option. The immersive Apple Vision Pro app uses AI to reconstruct richly detailed scenes from books you might like. It begins with a set of five classic novels like "The Great Gatsby" and "Alice in Wonderland," letting you navigate around them with head navigation. The app is a work in progress, with features like spatial audio, adjustable page size and color, and personalized book libraries on the way.

Another contender is Hidden Door, a social roleplaying platform that lets you play through adventures in officially licensed fictional universes. You can play through stories like "The Wizard of Oz" and "Pride and Prejudice" with agency, creating your own story within the bounds of the original story's lore. The multiplayer option lets you play online with friends, too, so it's a good way to interact with your favorite stories in a more dynamic way.