Calibro Reader vs csBooks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calibro Reader
Access your entire e-book library across all your mobile devices with this comprehensive reading platform. Enjoy a new reading style, share favorite quotes on social media, and keep your library with you anywhere.
- Cross-device e-book access
- Unified reading platform
- Social media quote sharing
- Access purchased e-books
- Library management
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Calibro: Keyifli, pratik, yeni bir okuma tarzı Calibro sadece bir cihaz değil, kitapseverlerin her zaman, her yerde ve her türlü cihazıyla e-kitaplarına ulaşmasını amaçlayan bir kitap ekosistemi. Bunun için bütün mobil cihazları sisteme dahil edip bir okuma platformu olarak görüyoruz. Bunun için tüm sistemlerde çalışan farklı uygulamalar hazırladık. iOS tabanlı tüm cihazlara uygun Calibro uygulaması ile e-kitaplarınızı tüm iPhone ve iPad cihazlarında rahatlıkla okuyabilirsiniz. Calibro iOS ile kütüphaneniz yanınızda. Calibro iOS ile bilgisayarınıza veya Calibro’nuza satın alarak indirdiğiniz e-kitabınızı tablet veya telefonunuzdan da okuyabilirsiniz. Okuduğunuz kitabın sevdiğiniz cümlelerini sosyal medyada paylaşabilirsiniz. Calibro iOS ile satın alma işlemi yapılamamaktadır ancak diğer platformlarda satın aldığınız e-kitaplarınızı okuyabilirsiniz.
csBooks
This app allows users to read and manage ePub and PDF books from their device. It offers features like automatic thumbnail generation, reading progress tracking, customizable text size, and multiple themes for a comfortable reading experience.
- Read ePub and PDF files
- Manage book library
- Auto book thumbnail generation
- Reading progress tracking
- Customizable text size and font
- 8 stylish reading themes
- Cloud storage and desktop sync
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Read ePub, PDF, MOBI, Docx, CBZ, CBR, DJVU and MOBI book files with csBooks – the best ebook reader and digital library manager for iPhone and iPad. Import, organize, and read books offline with our all-in-one book reader app. The #1 ebook reader app for offline and online reading: ePub reader & ePub viewer PDF reader & PDF viewer MOBI reader & MOBI viewer CBZ comic book reader Word document reader (DOCX) Book Reader Features: ePub reader with adjustable fonts, text size & 8 reading themes PDF reader with page progress tracking & navigation MOBI ebook reader for Kindle-format files Comic book reader for CBZ files Book library manager with card view & list view Auto-generated book cover thumbnails Reading progress tracker Cloud sync & cloud backup for your ebook library Offline reading – read books without internet Import ebooks from Files, email & cloud storage Desktop sync for cross-device reading Best ebook reader for digital library management. csBooks organizes your ePub books, PDF books, MOBI ebooks, and comic books in one beautiful reading app. Fast ePub viewer, smooth PDF viewer, and full-featured book manager. Read ebooks offline. Sync your book library to desktop. Track reading progress. csBooks is the ebook reader and library app for serious readers. Download csBooks – ebook reader, PDF viewer & digital library app. ------- Developer contact: studiocaesium@gmail.com Privacy Policy: https://www.caesiumstudio.com/privacy-policy End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is review sentiment: csBooks at 100% against Calibro Reader's 41%. csBooks also leads on update cadence (every 10 days vs every 4 months). Calibro Reader's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price 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. csBooks sells 2 in-app purchases, starting at $6.99 per month. Calibro Reader asks for nothing beyond the download.
Calibro Reader ships an update every 4 months, csBooks every 10 days. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.
| Parameter | Calibro Reader | csBooks |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 40.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | — |
| Update frequency | Every 4 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | LIBRONET BILGI HIZMETLERI VE YAZILIM SANAYI TICARET LTD STI | Ravi Kumar Sharma |
Customer experience
Calibro Reader
csBooks
In-app purchases
Calibro Reader
No in-app purchases
csBooks
- Unlimited Pro (Monthly)$6.991 Month
- Unlimited Pro (Yearly)$22.991 Year
