Heard

Heard is an iOS app that reads EPUB files aloud using neural text to speech generated entirely on your device. It solves a specific problem for readers who want audiobook-style listening without streaming services, subscriptions, or internet dependency. You load an EPUB, tap play, and the app reads page after page with natural sounding narration while you follow along or just listen. The entire speech synthesis pipeline runs locally on your iPhone, which means no account creation, no cloud uploads, and no waiting for a server to respond.

The app ships with a built-in library of 56 classic books sourced from Project Gutenberg. These are public domain works that include the major names from English literature and beyond. Jane Austen, Fyodor Dostoevsky, Charles Dickens, Homer, and dozens of others are there ready to read or listen to immediately after installing. For readers who want to start exploring without hunting for content or figuring out how to sideload files, this starter collection covers considerable ground. Every book in the library is formatted for the app and ready to narrate out of the box, so you can pick one and start listening within seconds of your first launch.

Beyond the built-in classics, you can import your own EPUB files. If you have purchased e-books elsewhere, downloaded DRM-free titles, or have a personal library of EPUBs accumulated over the years, Heard will read those too. The import process brings them into the same interface with the same playback capabilities, so your own books sit alongside the classics without any distinction in how they are handled. This flexibility makes Heard useful as a general purpose EPUB reader with TTS, not just an app for reading old literature.

What makes Heard different from the TTS features built into iOS or the accessibility reader you might already use is the quality of the neural voice model running on device. System voices have improved over the years, but many readers still find them robotic or fatiguing over long listening sessions. Heard bundles its own neural speech model, which produces more natural intonation and pacing. The tradeoff is that speech synthesis takes a few seconds when you first read a page, but once generated, playback is instant. This makes repeated listening smooth while still keeping everything local.

The reading interface covers the customization you would expect from a proper e-book reader. You can switch between light, dark, and sepia modes depending on your environment and preference. Font size adjusts for comfortable reading. You get a choice of serif, sans-serif, or monospace typefaces if you have strong opinions about how text should look. These controls affect the visual reading experience when you are following along with the narration or reading silently on your own.

Narration flows continuously from one page to the next. You do not have to tap to advance or manually trigger each page. Set it going at the start of a chapter and it will keep reading through to the end unless you stop it. For commuters, runners, or people doing household chores, this hands-free continuous playback is the main appeal. You can absorb a book while your eyes and hands are busy elsewhere.

Offline support is a core feature, not an afterthought. Because speech synthesis happens locally, you do not need a network connection once the app is installed. You can listen on a plane, in a subway tunnel, in a remote cabin, or anywhere your iPhone works but your signal does not. For travelers or anyone tired of apps that stop working the moment connectivity drops, this matters.

The target audience is iOS users who read digital books and want an audio option that respects their privacy and works without infrastructure. That includes accessibility-minded readers who find audio easier than visual text, commuters who want to make use of travel time, and anyone who absorbs information better through listening than reading. It also appeals to readers who care about not sending their reading habits to a third party server.

The app is free to download and the entire classic library is included without payment. There is no visible mention of in-app purchases, premium voice packs, or subscription tiers on the landing page. The business model is unclear, which could mean it is a passion project, ad-supported, or simply not monetized yet. For readers looking to try it out, there is no paywall to get past. The limitation is platform: Heard is iOS only. Android users and anyone who prefers reading on a desktop or e-ink device will need to look elsewhere.