Readest vs Apple Books: which reading app fits you?
Apple Books is the default reading environment for millions of iPhone, iPad, and Mac owners. It combines a polished EPUB and PDF reader with Apple's book and audiobook stores, iCloud, Family Sharing, Reading Goals, Apple Watch, and CarPlay. Readest takes a different path: it is an open-source reader for files and catalogs you choose, with the same library available on Apple devices, Android, Windows, Linux, and the web.
If all of your devices and purchases live inside Apple's ecosystem, Apple Books is hard to beat for convenience. If your library is mostly DRM-free EPUB and PDF files, you move between operating systems, or you want deeper typography, translation, TTS, and storage controls, Readest offers more freedom. Store purchases are the dividing line that no feature table should hide.
Last verified: August 28, 2026, against Readest 0.12.1 and Apple's current Books app and support documentation.
Readest vs Apple Books feature comparison
| Capability | Readest | Apple Books |
|---|---|---|
| Primary focus | Open, cross-platform personal library | Apple reading and bookstore ecosystem |
| iPhone and iPad | Yes | Yes, built in/downloadable from Apple |
| macOS | Yes | Yes |
| Android | Yes | No |
| Windows | Yes | No Apple Books app |
| Linux | Yes | No |
| Web reader | Yes | No general Apple Books web reader |
| Built-in ebook store | No; use files, OPDS, public libraries, or calibre | Apple Book Store |
| Built-in audiobook store | No | Apple Audiobook Store |
| EPUB files | Direct import | Direct import |
| PDF files | Direct import, text tools on text PDFs | Direct import and Markup tools |
| MOBI, AZW3, FB2, CBZ | Direct | Not core Apple Books import formats |
| TXT and Markdown | Direct | Not core Apple Books import formats |
| Store DRM | Does not open protected Apple/Kindle books | Opens Apple-purchased protected content |
| Reading sync | Across Readest platforms and selected providers | iCloud across Apple devices |
| Highlights, bookmarks, notes | Yes, with export and integrations | Yes, synced through iCloud |
| Typography | Fonts, uploads, themes, custom CSS, detailed spacing and columns | Themes, included fonts, line height, letter spacing, scrolling |
| Vertical CJK text | Yes | Supported by compatible books/system rendering |
| Text to speech | Reads personal books with voice and follow-along controls | Audiobook playback and system accessibility speech |
| Translation and lookup | Multiple providers, dictionaries, Wikipedia, Word Lens | Apple selection lookup and system translation features |
| Parallel reading | Two books side by side; up to four books on iPad windows | Standard Apple multitasking, no synced dual-book mode |
| OPDS and calibre | Built-in catalog and server connections | No OPDS catalog browser |
| Reading goals | Reading statistics and integrations | First-class Reading Goals, streaks, and coaching |
| CarPlay | Read-aloud playback controls | Audiobook playback controls |
| Apple Watch | No watch app | Audiobook app and downloads |
| Family sharing | Share links for eligible personal books | Family Sharing for eligible purchases |
| Source code | Open source, AGPL-3.0 | Proprietary |
| App price | Free; optional cloud plans | Free app; books and audiobooks sold individually |
Where Apple Books is the better choice
Buying and listening to commercial books
Apple Books includes a storefront with millions of ebooks and audiobooks, samples, charts, recommendations, curated collections, and purchase history tied to an Apple Account. Eligible purchases can be shared with a family group. The same app handles discovery, payment, downloading, reading, and listening. Readest has no commercial store and does not open DRM-protected Apple purchases.
That is not a small missing checkbox. If your library is primarily Apple Book Store titles, Apple Books is the required reader. Moving protected content to another app is generally not an option, and a comparison page should not imply otherwise.
Apple platform integration
Apple Books follows system accessibility, account, family, and media conventions without additional setup. iCloud keeps eligible books, PDFs, positions, bookmarks, notes, and highlights available on Apple devices. Audiobooks extend to Apple Watch and CarPlay. Reading Goals track daily activity, streaks, and yearly totals, with reminders designed around the operating system.
Readest supports Apple platforms well—including iCloud storage, iPad multi-window reading, offline read-aloud voices, and CarPlay controls—but it remains a third-party app. It cannot reproduce store ownership, family purchase sharing, or watchOS audiobook integration.
Simplicity for an all-Apple household
There is very little to configure when every device uses the same Apple Account. Import an EPUB or PDF, turn on Books in iCloud, and the system handles the rest. Readest provides more sync providers and controls, which is useful across ecosystems but can be unnecessary complexity for someone who never leaves Apple hardware.
Where Readest is the better choice
Cross-platform continuity
Readest has native applications for iOS, Android, Windows, macOS, and Linux plus a web reader. A personal book can move with its reading state instead of being available only where Apple Books exists. This is important in mixed households, for people with a Windows work computer, or for readers who use an Android-based e-ink tablet alongside an iPhone.
Sync can include files, progress, bookmarks, highlights, notes, preferences, custom fonts, dictionaries, and other selected categories. Readest Cloud is the default path; supported plans can use iCloud, Google Drive, OneDrive, WebDAV, or S3-compatible storage. The sync guide documents the provider and data boundaries.
More formats and open library sources
Apple Books focuses on store content, EPUB, PDF, and audiobooks. Readest directly opens EPUB, PDF, MOBI, AZW/AZW3, FB2, CBZ/ZIP, TXT, and Markdown. It can browse OPDS catalogs and public-library feeds, connect to calibre or calibre-web, accept a URL, import from a folder, read a file in place, or receive a book through the system share sheet.
These options matter most to readers who already own a varied archive. Readest does not promise to remove DRM; it provides a flexible home for compatible files the reader is entitled to use.
Typography, study, and accessibility tools
Apple Books offers attractive themes, font choices, line-height and letter-spacing adjustments, brightness controls, and vertical scrolling. Readest goes further for people who want exact control: uploaded fonts, custom CSS, configurable margins and columns, per-book or global settings, background textures, vertical CJK layout, an e-ink mode, page animations, and hardware button mappings.
Readest also treats listening and language study as features of any compatible book. TTS can use native, browser, or downloadable voices and follow the spoken word or sentence. Translation can cover a selection, page, or book; custom MDict and StarDict files complement system dictionaries; Word Lens provides inline hints. Parallel Read can align an original with a translation or commentary.
Portable annotations and integrations
Readest annotations can be exported to Markdown or text, filtered by color or style, and include deep links back to a passage. It integrates with Readwise and Hardcover and can exchange notes and progress with KOReader through its plugin. Apple Books keeps a smooth experience within iCloud but offers fewer paths into a reader-controlled, cross-platform knowledge workflow.
Privacy and business model
Apple Books is proprietary software attached to an account and content marketplace. Apple publishes privacy information and uses platform security controls, but the application's source and sync implementation are not inspectable. Store purchases depend on Apple services and license terms.
Readest is open source under the AGPL, local-first, and usable as a reader without an account. Optional sync sends the categories the user enables to the chosen service. Some advanced third-party storage features require a paid plan, and credential sync is opt-in with a separate passphrase. Open source does not automatically make every configuration private, but it gives readers more deployment and exit options.
Which should you choose?
Choose Apple Books if you buy from Apple's Book Store or Audiobook Store, want Family Sharing and Reading Goals, listen on Apple Watch, and expect every reading device to remain inside Apple's ecosystem. Its restrained interface and system integration are strengths, not missing power-user features.
Choose Readest if your library consists mostly of personal, DRM-free files; you read on non-Apple devices; or you want OPDS, calibre, KOReader, TTS, translation, custom dictionaries, portable annotations, and precise presentation controls. It is especially compelling when an iPhone is only one part of the reading setup.
Some readers will keep both: Apple Books for purchases and audiobooks, Readest for the personal library. That split respects the real content boundary and avoids forcing one app into a job it was not built to do.
Sources and verification
Apple claims were checked against the official Apple Books App Store listing, Apple Books product information, the iPhone Books user guide, and Apple's PDF support guide. Readest claims were checked against the Readest docs, App Store listing, and 0.12.1 release.
Frequently asked questions
- Is Readest better than Apple Books for EPUB files?
- Readest offers more file formats, custom CSS, third-party dictionaries, translation tools, and cross-platform access. Apple Books is simpler and more deeply integrated with Apple devices and its built-in bookstore.
- Can Readest replace Apple Books on iPhone and iPad?
- For personal EPUB and PDF libraries, often yes. Readers who buy books or audiobooks from Apple’s store will still need Apple Books for that protected store content.
- Does Readest sync between Apple and non-Apple devices?
- Yes. Readest runs on iOS, macOS, Android, Windows, Linux, and the web. It can sync books and reading data through Readest Cloud or supported third-party providers.
- Are Readest and Apple Books free?
- Both apps are free to install. Apple sells books and audiobooks individually. Readest reads your own files for free and offers optional paid cloud features.