Readest - eBook Reader

Readest - eBook Reader

EPUB, PDF, sync & read aloud

197 ratings
288 reviews
Free
In-App Purchases

Details

Released
November 26, 2024
Updated
October 14, 2026

Features

Readest - eBook Reader screenshot #1 for iPhone
Readest - eBook Reader screenshot #2 for iPhone
Readest - eBook Reader screenshot #3 for iPhone
Readest - eBook Reader screenshot #4 for iPhone
Readest - eBook Reader screenshot #5 for iPhone
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About

This app is a powerful ebook reader designed for deep thinkers and researchers. It offers advanced annotation tools, seamless device syncing, and robust library management with OPDS and Calibre support. Enjoy a distraction-free reading experience with customizable modes and multi-book viewing for enhanced study and analysis.

✓OPDS Online Libraries
✓Calibre Integration
✓Sync Across Devices
✓Bookshelf Management
✓Customizable Reading Modes
✓Multi-Book View
✓Advanced Annotations & Highlights
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What's New in Readest

0.12.16

October 14, 2026

– Text-to-Speech: Added Readest Voice premium read-aloud voices for Plus and Pro, you can now connect your own OpenAI-compatible voice service, and Edge voices work again – Annotations: You can now handwrite and draw on your pages, and share passages as quote card images – Library: Books now show their page count with a new Pages sort and filter that syncs across devices, and numbered titles sort in natural order – Sync: Custom fonts download when you need them and can be removed from the cloud, custom theme edits now sync, and deleted books no longer come back – Sync: KOReader progress sync and WebDAV sync are more reliable, and signing out only logs out the current device – Reading: Very large or link-heavy chapters no longer freeze the reader, and fixed layout issues with headings, blockquotes, footnotes, and background textures – Audiobooks: Audiobookshelf playback now works in the web app, chapters are detected more reliably, and you can pair audiobooks with books streamed from Audiobookshelf – PDF: You can hide page thumbnails in the PDF table of contents – More: The share sheet opens again on iOS 16, with polish for the drawing tools, bottom sheets, and bookshelf header

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Subscriptions & In-App Purchases

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$49.991 Year
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Charts

Top Free

📊 170

Book

The app has maintained its position at 170 recently.

Last updated on October 30, 2026.

User reviews

Needs Duo support ASAP

It’s a shame it’s been plenty of time to prep for this. but still this loads like an iPhone app on an iPad when you use it on an iPhone Duo.

Best reader

Exactly what I have been looking for. Best reader app. It has everything I need: multiple devices sync, audio reading and clean UI. Love it.

Fabulous!

I’ve switched all of my epubs over to Readest because I like it so much. It’s the little things that make it so nice, like the brightness slider. Unlike other ebook readers just a little slide has effect. Love the shelf adjustment. Nice to be able to see the book covers. Yes I like the skeuomorphic stuff.
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I never write reviews

Readest solves all the problems that Apple Books still faces, in addition to extreme customization features, wow!! Tip: the app’s logo could look more modern, so I can feature it prominently on my Mac dock, but that is the least of my concerns. 5/5

The best reading app, by far. Yet, there is great room for improvement (UPDATED)

“I will remove half a star every two weeks without an update addressing the problems I’m pointing out in this review. Yes, this is a threat. It’s how I show how much I love this app.


I’m starting with the problems deliberately—not because I dislike Readest, but because I think it’s an excellent EPUB reader and an impressive piece of app design. The best by far in this IOS prison. Download it, pay for their features, they have great pricing. Still, some issues, particularly with PDF reading, are too disruptive to overlook.”

ATTENTION: Many of the issues I found in my first review were already fixed and the app is working amazingly. Im surprised this app doesn’t have more 5 star reviews.

1. PDFs jump unexpectedly in scroll mode - FIXED ⭐️


“The most horrible bug I’ve encountered is that PDFs jump to a different position when I touch the screen to continue scrolling. This makes you lose your place in the text and repeatedly interrupts the reading experience. I’ve tried several adjustments within the app, but I haven’t found any reliable fix. For sustained reading, this is more than a minor annoyance. It makes it impossible to stay immersed and focus in the text. This is the issue I most hope to see resolved soon.”

IT’S WORKING PERFECTLY NOW, PROBLEM FIXED. ⭐️⭐️⭐️⭐️⭐️

2. Performance can become sluggish with a large library - FIXED ⭐️

“The app sometimes slows down and occasionally needs to be force-closed and restarted. My large library may be a contributing factor, although only a small proportion of my books are actually downloaded locally. I’m not sure what causes the slowdowns, but more consistent performance would make a noticeable difference.”


WORKING A LOT BETTER ⭐️⭐️⭐️⭐️⭐️

3. The focus-reading tools have great potential, but need refinement - PARTIALLY FIXED 💫🌟

The RSVP (“Fast Focus Reading”) feature is promising, but several aspects of its design undermine its purpose.

The context window display isn’t particularly helpful because it’s ugly and small and there’s no option to hide or customize it. Settings and controls also remain visible around the displayed word, creating distractions in a mode that should be designed to minimize them. But more importantly, we need a touch-controlled option, rather than relying entirely on a preset reading speed. Ideally, tapping the screen would advance one word, while pressing and holding would let the words flow continuously on a preset speed. Currently, tapping either pauses the automatic flow or jumps to another paragraph. Neither gives me the direct, word-by-word control. - STILL NEEDS WORK

“I’d also like a dedicated guided-highlighting mode within the text, independent of text-to-speech: something that briefly highlights each word or paragraph in sequence, providing a visual guide to pace reading and help maintain attention. The TTS feature already does something very similar, but its highlighting settings don’t seem to work correctly. Although it offers a choice between word-level and paragraph-level highlighting, selecting individual words still results in whole paragraphs being highlighted in my experience. Instead of helping me follow the text precisely, this becomes another distraction.”

TOTALLY FIXED IN TTS MODE 💫🌟

“Readest already gets a great deal right, especially with EPUBs. Fixing the PDF scrolling bug, improving stability, and refining these focus-reading tools would make an already impressive app much more dependable and enjoyable to use. For now, it’s the best thing I found. It deserves the 5-stars for this precise reason. Yet, the app is still unreliable under these conditions. We need feedback and fixing.“


YOU GUYS DESERVE 7 STARS FOR YOUR FEEDBACK OUTPUT, THANK YOU FOR NOW!
HOPE TO SEE THOSE OTHER FEATURES AND CORRECTIONS SOON!
⭐️⭐️⭐️⭐️⭐️⭐️⭐️
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FAQ

What does Readest do?

Readest is an advanced ebook reader designed for in-depth reading and analysis. It helps users read with clarity and purpose by offering powerful tools for annotation, research, and library management. The app supports seamless device syncing, allowing your progress, notes, and highlights to be updated across all your devices.

What are the key features of Readest?

Key features include OPDS online library browsing and downloading, Calibre integration for personal ebook collections, seamless syncing across devices, robust bookshelf management, customizable reading modes, multi-book viewing for comparison, advanced annotations and highlights, text-to-speech functionality, and instant translation.

Is Readest free to use?

The application is available for free with in-app purchases. This means you can download and use the core reading functionalities without initial cost, with optional features or enhancements available for purchase within the app.

What devices is Readest compatible with?

While the description doesn't explicitly list all compatible operating systems, the mention of 'sync across devices' and the privacy policy link to Apple's terms of service suggests it is available on iOS devices. Users should check the app store for specific compatibility information.

How can Readest help with studying or research?

Readest is ideal for studying and research due to its advanced annotation and highlighting tools, allowing users to mark key passages and take structured notes. The multi-book view feature enables side-by-side comparison of up to four books, which is perfect for cross-referencing information. Seamless syncing ensures your research materials are accessible across all your devices.