Readest vs CHM+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Readest
This app offers a versatile reading experience for various ebook formats, allowing users to manage their library, take notes, listen to audiobooks, and sync progress across devices. It supports OPDS catalogs, Calibre servers, and multiple cloud storage options for seamless access.
- Supports EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT, Markdown
- OPDS catalog and Calibre server integration
- Text-to-speech with offline voices
- Cross-device sync via cloud services
- Annotation and note-taking tools
- Customizable reading settings
- CarPlay support for audiobooks
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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/
CHM+
This app provides a streamlined way to read CHM documents on iOS devices. It offers quick import from local storage and iCloud, fast opening of large files, and efficient chapter navigation. Enjoy a smooth reading experience with support for multiple encodings.
- Quick document import (local storage, iCloud)
- Fast opening of large CHM files
- Table of contents chapter switching
- Multi-screen collaboration on iPad
- Support for multiple encoding types
- Smooth reading experience
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CHM+ focuses on enhancing the reading experience of CHM documents on the iOS platform. Main features: - Quick document import: Supports importing CHM documents from local storage and iCloud. - Fast opening of extremely large files. - Quick chapter switching: Supports switching by table of contents and quick switching in the order of the table of contents. - Multi-screen collaboration: Available for iPad. - Support for multiple encoding types. - A smooth reading experience.
Screenshots
Verdict
The clearest difference is rating: Readest at 4.5 against CHM+'s 3.0. Readest also leads on ads (none vs shown) and ratings volume (201 vs 2). On price, in-app purchases, monetization model and device support 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 and CHM+ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Readest holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Readest has 201 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 84% of Readest's written reviews are positive against 71% of CHM+'s.
Readest ships an update fortnightly, CHM+ every 6 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.
| Parameter | Readest | CHM+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (201 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 84.2% of reviews — better | 71.4% of reviews |
| Number of ratings | 201 — better | 2 |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | #191 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Bilingify LLC | 俊锋 仝 |
Customer experience
Readest
CHM+
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
CHM+
- CHM Pro$4.99









