Comparison

Readest vs Audiobookify

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Readest

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.

Highlights
  • OPDS Online Libraries
  • Calibre Integration
  • Sync Across Devices
  • Bookshelf Management
  • Customizable Reading Modes
  • Multi-Book View
  • Advanced Annotations & Highlights
Features
Read full description

Readest is an ebook reader for people who read a lot, and who want their books, notes and reading position on whatever device is nearest. Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown in one library. Pull books from OPDS catalogs or from your own Calibre server. Read, annotate, listen, translate. Made for iPhone and iPad • CarPlay, so you can keep listening on the road with playback controls on the dashboard • Download read-aloud voices per book and listen with no connection at all • Add books from Files, Mail or any share sheet, and read them in place instead of copying them into a second library • Open up to four books at once on iPad and arrange them how you like Reading • Paginated or scrolling, with custom fonts, themes, spacing and margins • Vertical text for CJK books • Contrast and refresh tuned for e-ink screens • Full-text search inside a book Your library • Browse, search and download from OPDS catalogs and public libraries • Connect to Calibre or Calibre-Web, covers and metadata included • Organize with bookshelf groups you can rename Notes • Highlights, bookmarks and structured notes • Copy a highlight together with a deep link back to the passage • Export your annotations Listening and languages • Text-to-speech with downloadable offline voices • Translate a sentence, a page, or an entire book • Wikipedia and dictionary lookup without leaving the page Sync • Readest Cloud, or bring your own: iCloud, Google Drive, OneDrive, WebDAV, S3 • KOReader sync keeps your progress in step with your e-reader • iPhone, iPad, Mac, all other platforms and the web Readest is open source. Support: support@readest.com Privacy Policy: https://readest.com/privacy-policy Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Audiobookify

Convert your EPUBs into audiobooks with on-device, offline neural text-to-speech. Enjoy a customizable reader and natural voices that work without an internet connection. Import books from various sources and sync your progress across devices.

Highlights
  • On-device offline neural TTS
  • Customizable EPUB reader
  • Background playback
  • Adjustable speaking speed
  • Text replacements for pronunciation
  • Import EPUBs from Files
  • Optional iCloud sync
Features
Read full description

Read your EPUBs, or listen to them, with Audiobookify’s on-device, offline neural voices. Experience multi-voice narration for your books. Read in a clean, customizable reader, or pick up listening where you left off with natural neural voices that run entirely on your device. Every model is optimized for efficiency, so you get great battery life, cool thermals and reliable background playback. Optimized for iOS 26 and 27. LISTEN TO ANY BOOK • On-device neural text-to-speech: once a voice is downloaded, narration works fully offline and nothing you read is sent to a server • Multiple engines and voices: Orate (our best expressive model, Supporter only), Supertonic (30+ languages) and Kokoro (English), plus every Apple system voice and your Personal Voice • Sentence-by-sentence highlighting that follows along as it reads • Double-tap any sentence to start listening from there • Scroll freely while it reads, then re-center or jump to where you are • Background playback with lock-screen, Control Center and CarPlay controls, so you can keep listening with the screen off • Adjustable speaking speed and pauses between sentences, saved as listening presets • Resumes where you left off and continues seamlessly across chapters INTELLIGENT CASTING (SUPPORTER) • Multi-voice narration: dialogue is read in character voices while your narrator reads the rest • Who speaks each line is worked out entirely on your device • Choose a narrator, male character dialogue, and female character dialogue (custom model download required) • Analyze the whole book or chapter by chapter, with each story cast separately in short-story collections • Results are saved per book, so cast listening works offline A READER YOU CAN MAKE YOUR OWN • Clean, distraction-free EPUB reading (TXT and Markdown also supported) • Choose your font, text size, line spacing, margins and color theme • Bookmark any sentence and find it again by chapter or by most recent • Search inside any book, or use Intelligent Search to find passages by meaning (English) • Table of contents, chapter navigation and progress tracking • Catch Me Up: on-device recaps of what you’ve read so far • RSVP (Rapid Serial Visual Presentation) speed-reading mode PRONUNCIATION THAT GETS IT RIGHT • Text replacements to fix names and abbreviations before they’re spoken • Pronunciation overrides using IPA for precise control • Smart handling of acronyms and all-caps text YOUR LIBRARY, EVERYWHERE • Import EPUBs from Files or other apps • Bring in fan fiction as EPUBs via URL import • Organize books into collections • Optional iCloud sync for reading progress, bookmarks, library and preferences • Home Screen widgets, Siri and Shortcuts to continue your book • Reading analytics for your daily and all-time reading and listening PRIVATE BY DESIGN • Speech is synthesized on your device; your books are never uploaded for narration • Intelligent Casting, Intelligent Search and recaps all run on your device • No account, no ads, no tracking One optional subscription, Audiobookify Supporter, unlocks Orate, our best expressive model, Intelligent Casting and premium voices, and supports ongoing development. More voices and models will be added in the future. All core features are free forever. Download once, listen offline, read your way. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://github.com/therysin/Audiobookify/blob/main/PrivacyPolicy.md

Screenshots

Readest4 screens
Audiobookify4 screens

Verdict

The call

The clearest difference is rating: Audiobookify at 5.0 against Readest's 4.5. Readest's advantage is ratings volume (199 vs 4) and device support (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Readest sells 9 in-app purchases, starting at $4.99 per month and Audiobookify sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Audiobookify holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Readest has 199 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Readest ships an update fortnightly, Audiobookify every 10 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Readest versus Audiobookify: the parameters behind the verdict, then further details
ParameterReadestAudiobookify
PriceFreeFree
Rating4.5 (199 ratings)5.0 (4 ratings) — better
Positive reviews83.8% of reviews—
Number of ratings199 — better4
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS16.4 — better26.0
Further details — not scored
Size58 MB19 MB
Age rating4+4+
DeveloperBilingify LLCJoshua Boodhu

Customer experience

Readest

All ratings191 ratings
Positive86.4%
Neutral5.2%
Negative8.4%
Written reviews290 reviews
Positive83.8%
Neutral5.9%
Negative10.3%

Audiobookify

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

9 purchases

Readest

Subscriptions4
  • Subscribe to Plus Plan$4.991 Month
  • Subscribe to Pro Plan$9.991 Month
  • Subscribe to Plus Plan$49.991 Year
Show 1 more
  • Subscribe to Pro Plan$99.991 Year
One-time5
  • 1 GB$9.99
  • 2 GB$14.99
  • Full Customization$19.99
Show 2 more
  • 5 GB$29.99
  • 10 GB$49.99
1 purchases

Audiobookify

Subscriptions1
  • Supporter7 Days trial$1.991 Month

Questions

Is Readest free?
Readest is free to download, with in-app purchases available.
Is Audiobookify free?
Audiobookify is free to download, with in-app purchases available.
Which has better reviews, Readest or Audiobookify?
Audiobookify is rated higher. Readest averages 4.5 out of 5 from 199 ratings, while Audiobookify averages 5.0 from 4 ratings.
Do Readest or Audiobookify have ads?
Neither Readest nor Audiobookify shows ads.
Which is updated more often, Readest or Audiobookify?
Readest ships an update fortnightly, and Audiobookify every 10 days. Most recently, Readest was updated on November 4, 2026 and Audiobookify on November 5, 2026.

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