PocketBook Reader vs KomiX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PocketBook Reader
This app is a versatile reader supporting 26 book and audio formats, including EPUB, PDF, and audiobooks. It offers features like PDF reflow, text-to-speech, cloud synchronization, and extensive customization options for a comfortable reading experience.
- Supports 26 book and audio formats
- PDF Reflow function
- Text-to-speech engine
- Cloud synchronization service
- Customizable interface and reading settings
- Adobe DRM support
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PocketBook Reader is a free app for reading all formats (books, magazines, textbooks, comic books, etc.) and listening to audiobooks! The application supports 26 book and audio formats, including mobi, epub, fb2, cbz, cbr. Read without ads and with total comfort! Choose any content - any format! • Support of 19 book formats, including the most popular - EPUB, FB2, MOBI, PDF, DJVU, DOCX, RTF, TXT, HTML; • Comic book formats CBR and CBZ; • Open books protected with Adobe DRM (PDF, EPUB); • PDF Reflow function (reflow text in PDF files). Listen to audiobooks! • You can listen to audiobooks and other audio files in MP3, M4B, and take notes in them; • Built-in TTS (Text-to-speech) engine for the voicing of the text files. Download and sync content easily! • Free PocketBook Cloud service for synchronizing all your books, including audiobooks, as well as reading positions, notes and bookmarks on all your devices; • Your files from Dropbox or Google Books services are easily connected to the app to create one consolidated library. You can even connect multiple accounts at the same time; • Support for OPDS catalogs - get access to network libraries; • ISBN scanner, for quick search of electronic versions of books by barcode; • Opportunity to borrow books and periodicals; • If you have a E Ink e-reader PocketBook, you can easily synchronize all your books and accounts just by scanning a QR code. Ready to switch from another app? No problem! Getting started with PocketBook Reader is easy! With an intuitive interface, the application provides you with unprecedented freedom – lots of options for settings and no restrictions. Choose, change, customize, and personalize! • Intuitive interface, easy navigation, and minimalistic design; • Opportunity to choose one of the seven interface color themes, reassign the buttons and display areas; • Two night-reading modes - for better reading comfort anytime; • Adjust the font style, font size, line spacing, and margin size; • Animation of turning pages; • Opportunity to crop margins – make the page look exactly the way you want. Get fast file access and easy search! • All files are quickly found and instantly opened, even with built-in audio and video fragments; • Your books will never be lost in the device’s memory - thanks to the smart search, scanning files on your tablet or smartphone is a matter of seconds. Any file or document can be found in a few clicks! • The app allows you to sort books, create collections, filter and mark files as you like. Your library - your rules; • Convenient managing of audio files - it is easy to sort and play your audiobooks. Make bookmarks, take notes, add comments! • You can quickly find all your notes and share them with friends via email or messengers; • Collect all your notes, bookmarks, and comments into separate files for even greater convenience. PocketBook Reader was created by avid readers for avid readers, and that’s why it’s probably the best e-book reader app.
KomiX
Organize and read your digital comic collection with features like thumbnail views, customizable stacks, and in-comic page navigation. Supports CBR, CBZ, and PDF formats, with options to edit pages and export comics.
- Thumbnail collection view
- Customizable comic stacks
- In-comic page navigation
- Supports CBR, CBZ, PDF
- Page editing and rearrangement
- Comic database with search
- Persistent zoom option
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KomiX makes organising your comics as fun as reading them! Features - *See your collection as thumbnails, pinch to zoom making the thumbnails as large or small as you like. *Create “stacks” of comics, in which you can drag and drop sets of comics. *Create “stacks” within stacks, for example you can create a Spider-Man stack, and inside that create a stack for the Amazing Spider-Man, and a stack for the Spectacular Spider-Man, and so on! *Currently reading panel shows you the comic you were last reading so you can jump straight back into it with a tap! *In comic reading view if you tap in the center the HUD will appear, with a thumbnail of each page. You can tap a page to jump to it. *Reads most Comic Book files - cbz, cbr, pdf. *A trash can - drag and drop comics onto the trash can icon to delete them. *An exporter - drag and drop comics onto the exporter icon to package comics to send them to other devices. When comics are packed ready to send the icon will display the number of comics ready, just tap the icon to display the list of ready comics and then tap the export button. *A 'take out of stack' icon - drag comics you want to take out of their current stack and drop them on this icon. *Comic Database feature - can create a Database of all your comics in KomiX, all entries fully editable. You can even add your' physical copy' comics to the Database. The Database has great search features. *Persistent zoom - you can turn on persistent zoom in the settings, good if you use a smaller device (iPhone), and not an iPad to read your comics. *Edit pages - you can now rearrange pages, or delete unwanted or duplicate pages. Tip - you can easily drag more than one comic at a time - start a drag by touching a comic for a second until it 'pops out' then drag it across the screen - don't let go! Now you can tap other comics with a free finger - these will be added to the drag list. Now you can drag the comics to a stack, or the trash, or another App! I hope you enjoy the App! I am a huge fan of comics, so I made this App because I wanted features that other Comic Readers didn't have. Please let me know of any features you'd like via my FaceBook page (reachable in the App).
Screenshots
Verdict
The clearest difference is price: PocketBook Reader at Free against KomiX's $1.99. PocketBook Reader also leads on rating (4.5 vs 2.8) and ratings volume (9.8K vs 4). KomiX's advantage is in-app purchases (none vs 56) and review sentiment (67% vs 54%). On update cadence, ads, device support and iOS requirement 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
PocketBook Reader is free to download; KomiX costs $1.99 up front. PocketBook Reader sells 41 one-off in-app purchases. KomiX asks for nothing beyond the download.
PocketBook Reader holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: PocketBook Reader has 9.8K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 54% of PocketBook Reader's written reviews are positive against 67% of KomiX's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 29, 2026 and June 2, 2026 respectively.
| Parameter | PocketBook Reader | KomiX |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.5 (9.8K ratings) — better | 2.8 (4 ratings) |
| Positive reviews | 54.5% of reviews | 66.7% of reviews — better |
| Number of ratings | 9.8K — better | 4 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | #142 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 106 MB | 31 MB |
| Age rating | 9+ | 4+ |
| Developer | Pocketbook International SA | Jason Santos |
Customer experience
PocketBook Reader
KomiX
Bugs and requests
PocketBook Reader
Reported bugs
4 issues- Books disappearing from library after login issues
- Inability to open DRM-protected PDFs
- Inconsistent behavior when switching between portrait and landscape modes
- Text-to-speech voice quality issues
Requested features
5 requests- Ability to organize books into custom folders
- Option to disable quick action zones
- Improved text-to-speech controls (seek, pause, etc.)
- Support for handwritten annotations with Apple Pencil
- Faster page turning and scrolling
KomiX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PocketBook Reader
- eBook3 variants$0.99
- eBook (class A)$0.99
- eBook2 variants$1.99
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- eBook (class B)$1.99
- eBook$2.95
- eBook2 variants$2.99
- eBook (class C)$2.99
- eBook3 variants$3.99
- eBook: type 4.79$3.99
- eBook: type 4.19$3.99
- eBook (class D)$3.99
- eBook (class Alt5)$4.99
- eBook: type 5.39$4.99
- eBook (class F)$4.99
- eBook: type 5.89$4.99
- eBook$4.99
- eBook: type 5.09$4.99
- eBook (class G)$5.99
- eBook2 variants$5.99
- eBook: type 7.09$5.99
- eBook: type 7.19$5.99
- eBook: type 8.29$6.99
- eBook: type 7.59$6.99
- eBook3 variants$7.99
- eBook: type 8.89$7.99
- eBook (class J)$8.99
- eBook$8.99
- eBook$9.90
- eBook2 variants$9.99
- eBook (class L)$10.99
- eBook: type 13.9$11.90
- eBook$11.99
- eBook: type 12.99$11.99
- eBook$12.99
- eBook (class N)$12.99
- eBook (class O)$13.99
- eBook: type 17.9$14.90
- eBook$14.99
- eBook (class R)$16.99
- eBook (class T)$18.99
- eBook (class W)$21.99
KomiX
No in-app purchases









