Comparison

e vs csBooks

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

Head to head
About

e

Features
Read full description

TINY and the seven stories of his secrets There once was a little boy, and all the other children called him Tiny. In his pockets he kept all his treasures. Sometimes he could feel secrets hidden in these treasures, secrets he didn’t quite understand. An angel put the stories to go with all these things he kept into his heart. So all Tiny had to do was take one of his treasures in his hand, for example the seashell, and its secret would open up to him straight away. TINY at the Children’s Zoo There once was a little boy, and all the other children called him Tiny. In his pockets he kept all his treasures. Sometimes he could feel secrets hidden in these treasures, secrets he didn’t quite understand. An angel put the stories to go with all these things he kept into his heart. So all Tiny had to do was take one of his treasures in his hand, for example the seashell, and its secret would open up to him straight away. THE OLD MERRY-GO-ROUND The merry-go-round belongs to a man called George. He does everything himself. He sets up the merry-go-round. He collects the money. George is worried–he would much rather have dodgems. The animals on his merry-go-round run away. They go and visit children at night, in their dreams, and then they come back. George is desperate but the children help him to find all his animals.

About

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.

Highlights
  • 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
Features
Read full description

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

e4 screens
csBooks4 screens

Verdict

The call

The clearest difference is ads: e at none against csBooks's shown. e also leads on iOS requirement (12.4 vs 15.0). csBooks's advantage is update cadence (every 2 weeks vs every 16 months). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. e sells 6 one-off in-app purchases and csBooks sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

e ships an update every 16 months, csBooks every 2 weeks. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

Scorecard3 real differences Β· 5 level
e versus csBooks: the parameters behind the verdict, then further details
ParameterecsBooks
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 16 monthsEvery 2 weeks β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
Monetizationβ€”Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac β€” better
Requires iOS12.4 β€” better15.0
Further details β€” not scored
Size14 MB61 MB
Age rating4+4+
Developere-publishRavi Kumar Sharma

In-app purchases

6 purchases

e

One-time6
  • Das alte KarussellFree
  • The old merry-go-roundFree
  • Knirps$0.99
Show 3 more
  • Knirps im Kinderzoo$0.99
  • Tiny at the children's zoo$0.99
  • Tiny$0.99
2 purchases

csBooks

Subscriptions2
  • Unlimited Pro (Monthly)$6.991 Month
  • Unlimited Pro (Yearly)$22.991 Year

Questions

Is e free?
e is free to download, with in-app purchases available.
Is csBooks free?
csBooks is free to download, with in-app purchases available.
Do e or csBooks have ads?
csBooks shows ads; e does not.
Which is updated more often, e or csBooks?
e ships an update every 16 months, and csBooks every 2 weeks. Most recently, e was updated on November 2, 2026 and csBooks on November 8, 2026.

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