> ## Content Index > Fetch the complete content index at: https://www.bookbeam.tools/llms.txt > Use this file to discover other available public pages before exploring further. # KOReader alternatives for Android - URL: https://www.bookbeam.tools/blog/koreader-alternatives/ - Published: 2026-11-02T15:00:48.000Z - Updated: 2026-11-02T15:25:32.000Z - Description: Love KOReader's e-ink focus but not its learning curve? Here are the best Android alternatives in 2026, including two that sync with KOReader, plus an honest look at where KOReader still wins. - Author: Michal Wlosik - Tags: Comparisons, E-ink **Short answer:** the best KOReader alternatives for Android in 2026 are Bookbeam Reader (e-ink first, and it can sync progress with KOReader), Readest (open source, with KOReader sync and OPDS), Moon+ Reader (the most customizable), ReadEra (simple and ad-free) and Librera (open source with wide format support). If you own a BOOX, its built-in NeoReader is also worth a fair look. Which one fits depends on what you liked about KOReader and what pushed you away. Full disclosure: we make Bookbeam. We also think KOReader is a remarkable piece of software, and we'll be clear below about where it still beats every alternative, us included. ## Why people look for a KOReader alternative KOReader is a free, open-source reader (licensed under AGPL-3.0) that runs on Kindle, Kobo, PocketBook, reMarkable and Cervantes e-readers, plus Android and Linux. It has a huge feature list: detailed typesetting controls, bundled hyphenation dictionaries, StarDict dictionary lookup, OPDS catalogs, Calibre and Wallabag integration, RSS, a plugin system, and the ability to reflow scanned PDFs and DjVu files. Its interface is built for e-ink, with no animations. So why switch? The reasons we hear most often: - **The learning curve.** KOReader exposes a lot of settings through nested menus. Power users love that; people who just want to read often find it overwhelming. - **It doesn't feel like a typical Android app.** KOReader uses its own interface across every platform. That's a strength on a Kobo, but on an Android phone it can feel out of place next to your other apps. - **Sync is do-it-yourself.** KOReader can sync reading progress through its sync server, but syncing your whole library, highlights and notes across a phone, tablet and e-reader takes extra setup. - **Read aloud and language tools.** If you want natural-sounding voices or translation alongside the text, you'll be reaching for other apps. ## KOReader alternatives at a glance | App | Price | Open source | KOReader sync | OPDS | Best for | | --------------- | --------------------------------------------------- | ----------- | ------------- | ----------------------------- | ----------------------------------------------------------------- | | Bookbeam Reader | Free; Pro $6.99/month or $59.99/year; Lifetime $129 | No | Yes | No (not yet) | E-ink devices, sync across devices, read aloud, language learners | | Readest | Free | Yes (AGPL) | Yes | Yes | An open-source app on every platform | | Moon+ Reader | Free with ads; one-off Pro upgrade | No | No | Yes | Tinkerers who want a native Android app | | ReadEra | Free, no ads; one-off Premium upgrade | No | No | Not advertised | A clean library of local files | | Librera | Free; paid PRO version on Google Play | Yes (GPL) | No | Yes, except the F-Droid build | Many formats, including DjVu and comics | | NeoReader | Built into BOOX | No | No | Not its focus | BOOX owners who want zero setup | ## 1\. Bookbeam Reader: the e-ink-first alternative that keeps your KOReader sync Bookbeam is the alternative we'd suggest if you liked KOReader's e-ink focus but want a simpler, more modern app. Pages are paged with no scrolling, page turns are designed to avoid ghosting, and an E-ink settings tab lets you set "Full refresh every N pages," tap "Refresh now," boost text weight and contrast, and turn publisher styles on or off. In landscape, a side rail keeps controls out of the text. The part KOReader users usually ask about first: Bookbeam can use **KOReader sync** as a source (Settings → Sources), so you can keep KOReader on a Kobo or Kindle and read the same book in Bookbeam on your Android phone or BOOX. It also connects to Audiobookshelf, and you can upload books to its web library at books.bookbeam.tools. It doesn't support OPDS catalogs yet, so if OPDS matters to you, Readest or Moon+ Reader below cover it. Beyond that, Bookbeam syncs progress, highlights, notes and your library across devices on its own, with a free web library at books.bookbeam.tools. Page turning covers tap zones, volume keys, Bluetooth remotes and headset buttons, with "One page per press," "Reverse volume direction," "Mirror for left hand" and a "Test your buttons" screen. You also get long-press dictionary and translation, a spoiler-free Book guide to characters and places, read aloud with natural voices, and bilingual reading on Pro and Lifetime. **Where it falls short of KOReader:** it isn't open source, it doesn't open DjVu, it has nothing like KOReader's reflow for scanned pages, it has no plugin system, and it only runs on Android, so it won't replace KOReader on a Kobo or jailbroken Kindle. Formats are EPUB, PDF, DRM-free MOBI and AZW3, FB2, TXT and CBZ. ![Bookbeam Reader e-ink settings tab with full refresh every N pages, refresh now, and text contrast boost](https://www.bookbeam.tools/content/images/2026/11/image-mvzeusyx.webp) Bookbeam's E-ink tab: full refresh interval, Refresh now, text weight and contrast. [![CTA Image](https://www.bookbeam.tools/content/images/2026/11/image-mvzab17d.png)](https://play.google.com/store/apps/details?id=bookbeam.app&ref=bookbeam.tools) **KOReader sync, friendlier reader.** Bookbeam syncs progress with KOReader and is e-ink first, with a simpler setup. [Try Bookbeam free for 7 days ](https://play.google.com/store/apps/details?id=bookbeam.app&ref=bookbeam.tools) ## 2\. Readest: the open-source, cross-platform option If staying open source matters to you, Readest is the closest in spirit to KOReader. It's licensed under AGPL, runs on Android, iOS, Windows, macOS, Linux and the web, and supports EPUB, MOBI, AZW3, FB2, CBZ and TXT, with PDF support still marked experimental. It has text-to-speech, dictionary and Wikipedia lookup, translation, highlights and notes, and a split-screen "Parallel Read" view. Recent releases include fixes for KOReader progress sync and OPDS catalogs, so both features are in active use. It's a young project that moves quickly, which is good for features and occasionally means rough edges. E-ink-specific tuning isn't its main focus, though recent notes mention fixing highlights on e-ink screens. ## 3\. Moon+ Reader: for people who loved KOReader's settings Moon+ Reader is a long-running Android reader with a deep settings menu, so KOReader fans who enjoy tweaking usually feel at home. It opens a wide range of formats, including EPUB, PDF, MOBI, AZW3, FB2, DjVu, CBZ and CBR. It supports online libraries and Calibre servers via OPDS, and backs up and syncs reading positions through Dropbox or WebDAV. ![Moon+ Reader app screenshots](https://www.bookbeam.tools/content/images/2026/11/image-mvzenbga.webp) Moon+ Reader. Screenshots: Google Play. The free version shows ads. The one-off Pro upgrade removes them and adds features its listing groups under Pro, including text-to-speech, PDF annotation, extra themes and Bluetooth or headset page control. It's a classic Android app at heart, with page-turn animations and auto-scroll, so on e-ink you'll want to switch those effects off. There's no KOReader sync. ## 4\. ReadEra: the simplest switch ReadEra is the opposite of KOReader in philosophy: few settings, a clean interface and no account. It's free with no ads and no registration, and opens EPUB, MOBI, AZW3, FB2, PDF, DjVu, CBR, CBZ, DOC, DOCX, RTF, ODT and TXT, including files inside ZIP archives. It finds books on your device automatically and organizes them by author, series and collection. ![ReadEra app screenshots](https://www.bookbeam.tools/content/images/2026/11/image-mvzencpz.webp) ReadEra. Screenshots: Google Play. ReadEra Premium is a one-time purchase that adds Google Drive sync for books, progress, bookmarks and quotes, custom fonts, more highlight colors and more library views. It doesn't advertise OPDS catalogs or KOReader sync, so it suits people whose books already live on the device. ## 5\. Librera: open source with the widest format list Librera Reader is GPL-licensed and supports a very long list of formats: PDF, EPUB, MOBI, AZW, AZW3, DjVu, FB2, TXT, RTF, HTML, CBZ, CBR, DOC and DOCX. It includes customizable text-to-speech and can record a book's TTS to MP3 or WAV. It's still actively updated, with a new F-Droid release at the end of October 2026. ![Librera app screenshots](https://www.bookbeam.tools/content/images/2026/11/image-mvzenebw.webp) Librera. Screenshots: Google Play. One detail for KOReader users who care about OPDS: the F-Droid build leaves OPDS out because it doesn't request internet access. The Google Play and GitHub builds include it. ## 6\. NeoReader: BOOX's built-in reader If your e-reader is a BOOX, you already have NeoReader. It's tuned for the hardware, needs no setup and handles PDFs and stylus annotations. It's less flexible with sources and sync than the apps above, and it only exists on BOOX. We compare it in detail in [the best reading app for BOOX](https://www.bookbeam.tools/blog/best-reading-app-for-boox/). ## Where KOReader still wins To be fair, here's when you should keep KOReader: - **Scanned PDFs and DjVu.** KOReader's built-in reflow for scanned pages (using the k2pdfopt library) is something no other app here really matches. - **Non-Android e-readers.** On Kobo, PocketBook or a jailbroken Kindle, KOReader is in a class of its own. - **Total control.** Plugins, an SSH server, an FTP client and almost every typesetting setting you can imagine. - **Free and open forever.** No account, no subscription, no company that could change direction. ![KOReader app screenshots](https://www.bookbeam.tools/content/images/2026/11/image-mvzenihk.webp) KOReader. Screenshots: F-Droid. Many people end up using both: KOReader on a Kobo, and an Android app on their phone or BOOX, synced through KOReader sync. That's exactly the setup Bookbeam supports. [![CTA Image](https://www.bookbeam.tools/content/images/2026/11/image-mvzab17d.png)](https://play.google.com/store/apps/details?id=bookbeam.app&ref=bookbeam.tools) **Read better on e-ink.** Bookbeam Reader turns pages without ghosting, reads aloud and translates as you read. [Get Bookbeam Reader ](https://play.google.com/store/apps/details?id=bookbeam.app&ref=bookbeam.tools) ## How to choose - **You read on a BOOX or other Android e-ink device and want it to feel effortless:** Bookbeam, then NeoReader if you'd rather stay built-in. Pair it with a [Bluetooth page turner](https://www.bookbeam.tools/blog/bluetooth-page-turner-android/) for the full e-reader feel. - **You want to stay fully open source:** Readest or Librera. - **You want maximum tweaking in a native Android app:** Moon+ Reader. See our [Moon+ Reader vs ReadEra vs Bookbeam](https://www.bookbeam.tools/blog/moon-reader-vs-readera-vs-bookbeam/) comparison. - **You want something simple for books already on your device:** ReadEra. - **You run Calibre and want your library everywhere:** any app with OPDS. Here's [how to connect Calibre on Android](https://www.bookbeam.tools/blog/calibre-on-android-opds/). For the bigger picture, including store apps like Kindle and Play Books, see our guide to [the best e-book reader apps for Android](https://www.bookbeam.tools/blog/best-ebook-reader-app-android/). ## FAQ ### Is there a KOReader alternative that syncs with KOReader? Yes. Bookbeam Reader can use KOReader sync as a source, and Readest supports KOReader progress sync too. That lets you keep KOReader on one device and use a different app on Android. ### Is KOReader available on Android? Yes. KOReader runs on Android as well as Kindle, Kobo, PocketBook, reMarkable and Linux. It's free and open source. ### What's the best open-source alternative to KOReader? Readest and Librera are both open source and available on Android. Readest is newer and cross-platform; Librera has been around longer and supports more formats. ### Which alternative handles scanned PDFs best? Honestly, KOReader, thanks to its reflow for scanned pages. If PDFs are most of what you read, keep it around for those. ### Do any of these apps open Kindle store books? No. Kindle store purchases carry DRM, and none of these apps open them. Bookbeam opens MOBI and AZW3 files without DRM. Our guide to [DRM-free e-books](https://www.bookbeam.tools/blog/drm-free-ebooks/) explains where to find books you can read anywhere. ## Keep what you liked, lose the friction KOReader set the bar for e-ink reading, and you don't have to give it up completely. If you want an Android reader that respects e-ink, keeps your library in sync and still talks to KOReader, Bookbeam is free to try, with 7 days of Pro included and no card needed. [![CTA Image](https://www.bookbeam.tools/content/images/2026/11/image-mvzab17d.png)](https://play.google.com/store/apps/details?id=bookbeam.app&ref=bookbeam.tools) **Ready to try it?** Install Bookbeam Reader and start with a free 7-day Pro trial. [Download Bookbeam free ](https://play.google.com/store/apps/details?id=bookbeam.app&ref=bookbeam.tools)