Readest vs Readify AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- OPDS Online Libraries
- Calibre Integration
- Sync Across Devices
- Bookshelf Management
- Customizable Reading Modes
- Multi-Book View
- Advanced Annotations & Highlights
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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/
Readify AI
Transform any written content into an immersive audio experience with AI-powered narration. Supports various file formats and web content, optimizing layouts for seamless listening across devices. Offers a fully unlocked premium experience with no hidden fees.
- Expressive neural AI voices
- Universal document support (ePUB, PDF, TXT, MOBI)
- Continuous cross-device sync
- Intelligent layout optimization for PDFs
- Web content and article capture
- Fully unlocked premium features
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Turn the PDFs, ebooks, and documents you already own into natural-sounding audio. Import a file, press play, and make room for more reading—on a walk, in transit, at your desk, or away from the screen. LISTEN TO YOUR OWN LIBRARY. Bring your PDF, EPUB, TXT, MOBI, and AZW files into Readify. Choose an AI voice and settle into a comfortable listening pace for books, documents, and study materials. MADE FOR LONG DOCUMENTS For supported PDFs, Readify can turn dense pages and multi-column layouts into a cleaner reading experience before you listen. FOR SCANNED PDFS, TOO Import a scanned PDF, and Readify can recognize its text, making it easier to read and listen to. No camera scan needed. PICK UP WHERE YOU LEFT OFF Listen when you have time—during commutes, workouts, chores, or while resting your eyes. Prepare supported content for offline listening, and sign in when you want to keep your place across supported devices. START WITH A FILE YOU ALREADY HAVE. Open a PDF, ebook, or document. Choose a voice. Press play. Download Readify AI and turn the reading you already have into time you can use.
Screenshots
Verdict
The clearest difference is in-app purchases: Readify AI at none against Readest's 9. Readify AI also leads on rating (4.8 vs 4.5) and update cadence (weekly vs fortnightly). Readest's advantage is chart position (#209 vs unranked). On price, review sentiment, ratings volume and ads 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
Both are free to download. Readest sells 9 in-app purchases, starting at $4.99 per month. Readify AI asks for nothing beyond the download.
Readify AI holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 195 and 105 respectively. Written reviews point the same way: 84% of Readest's written reviews are positive against 90% of Readify AI's.
Readest ships an update fortnightly, Readify AI weekly. Both last shipped on October 22, 2026.
| Parameter | Readest | Readify AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (195 ratings) | 4.8 (105 ratings) — better |
| Positive reviews | 84.2% of reviews | 89.9% of reviews — better |
| Number of ratings | 195 — better | 105 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #209 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 58 MB | 134 MB |
| Age rating | 4+ | 4+ |
| Developer | Bilingify LLC | DeepReads LLC |
Customer experience
Readest
Readify AI
In-app purchases
Readest
- Subscribe to Plus Plan$4.991 Month
- Subscribe to Pro Plan$9.991 Month
- Subscribe to Plus Plan$49.991 Year
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- Subscribe to Pro Plan$99.991 Year
- 1 GB$9.99
- 2 GB$14.99
- Full Customization$19.99
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- 5 GB$29.99
- 10 GB$49.99
Readify AI
No in-app purchases









