Comparison

PureLibro vs KOOBONE

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

Head to head
About

PureLibro

This app offers a comprehensive reading experience for various digital book and comic formats. It features AI-powered image enhancement, cloud synchronization, extensive customization options, and robust privacy controls. Enjoy hands-free reading and track your progress with detailed statistics.

Highlights
  • Supports TXT, EPUB, MOBI, PDF, CBZ, CBR and more
  • AI-powered image enhancement for comics
  • iCloud sync across devices
  • Hands-free auto reading mode
  • Extensive customization of fonts, layout, and appearance
  • Advanced privacy features with password and Face ID
  • Detailed reading statistics and library management
Features
Read full description

PureLibro is a multi-format reader for novels, comics, PDFs, local files, and remote libraries. Feature Highlights. Everything is designed for better reading. 1. Rich format support: supports popular formats including TXT, EPUB, MOBI, AZW3, AZW, CBZ, CBR, PDF, ZIP, and RAR (DRM-free files only). 2. Comic reader: supports ZIP, RAR, CBZ, and CBR comic archives. PDF, EPUB, and MOBI files can also be switched to comic mode with one tap, making it ideal for comics, art books, and image-rich content. 3. Remote library streaming reading (comic mode): supports remote libraries such as SMB, OPDS and WebDAV. On servers that support streaming access, ZIP, RAR, CBZ, CBR, and PDF files can be opened without fully downloading them first, saving local storage space. 4. AI-based image enhancement: supports Waifu2x / Anime4K to improve comic image quality (comic mode only). 5. iCloud sync: keeps reading progress and book data consistent across your devices. 6. Data backup: package your reading data with one tap and save it to cloud drives or other storage locations for extra peace of mind. 7. TXT file editing: edit TXT content directly for easier reading and organization. 8. Multiple import methods: import books via WebDAV, cloud drives, Wi-Fi transfer, iCloud, and more. 9. Auto reading: free your hands and make long reading sessions more comfortable. 10. Personalized layout: customize character spacing, paragraph layout, background images, and text colors to create your own reading style. 11. Eye-friendly reading: supports dark mode, page curl, slide, scrolling, and other reading modes, with Simplified/Traditional Chinese conversion. 12. Privacy protection: supports password, gesture, and Face ID unlock, and allows you to encrypt or hide books to protect your personal reading space. 13. Reading statistics: records reading duration, frequency, progress, and more to help you understand your reading habits. 14. Flexible book management: supports custom groups, title editing, and sorting for a clearer library. 15. Custom covers: customize covers for TXT and other books to make your bookshelf look better. 16. Automatic chapter detection: TXT novels can also be divided into chapters with one tap, improving the long-form reading experience. 17. Multiple font options: use system fonts or import custom fonts. 18. Multiple listening voices: supports system text-to-speech and Alibaba Cloud speech synthesis, with multiple voices to choose from. -- Pro benefits: After subscribing to Pro, you can use all Pro advanced features during the service period and remove all ads. -- Monthly subscription (1 month), quarterly subscription (3 months), and yearly subscription (1 year) are auto-renewable subscriptions. -- The actual product price applies. The purchase price will be charged in your local currency according to the current exchange rate defined by iTunes. Payment will be charged to your iTunes account upon confirmation of purchase. 【Monthly, Quarterly, and Yearly Auto-Renewable Subscription Services】 -- If you subscribe to the monthly, quarterly, or yearly auto-renewable service, you authorize Window Reading to charge your iTunes account (the “Account”) for the next billing cycle of the Pro service within 24 hours before the current subscription period expires. If the charge fails due to insufficient account balance, Window Reading reserves the right to suspend or terminate your Pro service without further notice. -- To cancel an active auto-renewable subscription, go to “Settings” on your iOS device → “iTunes Store & App Store” → select “Apple ID” → tap “View Apple ID” → tap “Subscriptions” on the account settings page → cancel the subscription. -- Privacy Policy: https://gitee.com/coder_to/luck/blob/master/App/Privacy.md -- Terms of Service and Auto-Renewal Terms: https://gitee.com/coder_to/luck/blob/master/App/serviceForMembers.md Icon Design Studying icons created by Freepik - Flaticon

About

KOOBONE

This app helps manage EPUB comics by uploading them to cloud storage. It offers automatic categorization, custom tagging, and local caching for offline reading.

Highlights
  • EPUB comic management
  • Cloud storage
  • Automatic categorization
  • Custom tagging
  • Local caching for offline reading
Features
Read full description

協助管理EPUB格式漫畫。將EPUB格式漫畫上傳並保存在雲端伺服器中,可自動分類、設定自訂標籤,同時也可以將漫畫快取到本地後閱讀。

Screenshots

PureLibro4 screens
KOOBONE3 screens

Verdict

The call

The clearest difference is in-app purchases: KOOBONE at none against PureLibro's 6. KOOBONE also leads on rating (5.0 vs 4.6). PureLibro's advantage is ratings volume (362 vs 2) and update cadence (every 10 days vs every 3 weeks). On price, review sentiment, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PureLibro sells 6 in-app purchases, starting at $0.99 per month. KOOBONE asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

KOOBONE holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PureLibro has 362 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 77% and 77% positive.

UpkeepUpdate frequency

PureLibro ships an update every 10 days, KOOBONE every 3 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

Scorecard5 real differences · 5 level
PureLibro versus KOOBONE: the parameters behind the verdict, then further details
ParameterPureLibroKOOBONE
PriceFreeFree
Rating4.6 (362 ratings)5.0 (2 ratings) — better
Positive reviews76.6% of reviews77.4% of reviews — better
Number of ratings362 — better2
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.415.0 — better
Further details — not scored
Size42 MB4 MB
Age rating17+4+
Developer添欢 谢Juanmoe tech (Shenzhen) Limited

Customer experience

PureLibro

All ratings362 ratings
Positive90.6%
Neutral3.6%
Negative5.8%
Written reviews171 reviews
Positive76.6%
Neutral11.7%
Negative11.7%

KOOBONE

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews31 reviews
Positive77.4%
Neutral16.1%
Negative6.5%

Bugs and requests

PureLibro

Reported bugs

4 issues
  • Inconsistent behavior when switching between reading modes
  • Issues with loading and rendering large books or comics
  • Problems with the reliability of the built-in web browser
  • Bugs related to the iCloud sync and backup functionality

Requested features

7 requests
  • Add support for more text-to-speech options
  • Implement bulk import and management of books
  • Introduce multi-device sync and reading progress tracking
  • Expand font and theme customization capabilities
  • Improve localization and translation of the app
Show 2 more
  • Add support for OPDS and other external library sources
  • Implement a more robust and user-friendly TXT file handling

KOOBONE

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

PureLibro

Subscriptions3
  • 1 monthly subscription$0.991 Month
  • 3 monthly subscription$1.993 Months
  • yearly subscription$5.991 Year
One-time3
  • Pro Special Offer$12.99
  • Unlock Pro Version$12.99
  • Unlock Pro Version$19.99
None

KOOBONE

No in-app purchases

Questions

Is PureLibro free?
PureLibro is free to download, with in-app purchases available.
Is KOOBONE free?
KOOBONE is free to download, with no in-app purchases.
Which has better reviews, PureLibro or KOOBONE?
KOOBONE is rated higher. PureLibro averages 4.6 out of 5 from 362 ratings, while KOOBONE averages 5.0 from 2 ratings.
Do PureLibro or KOOBONE have ads?
Neither PureLibro nor KOOBONE shows ads.
Which is updated more often, PureLibro or KOOBONE?
PureLibro ships an update every 10 days, and KOOBONE every 3 weeks. Most recently, PureLibro was updated on October 17, 2026 and KOOBONE on October 16, 2026.

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