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SideBooks

SideBooks

PDF๏ผ†Comic Viewer

95 ratings
214 reviews
๐Ÿ”ง Utilities
๐Ÿ“š Books
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 19, 2010
  • May 19, 2026

Features

Developer

Tatsumi-System Co., Ltd.
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SideBooks screenshot #1 for iPhone
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SideBooks screenshot #4 for iPhone
iphone
ipad
๐Ÿงพ$0.99
In-App Purchaseโ†˜๏ธŽ
๐Ÿ“ŒReady
Reviews summaryโ†˜๏ธŽ
โญ214
Reviewsโ†˜๏ธŽ
๐Ÿ“2+ tags
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๐Ÿ”„6+ apps
Alternativesโ†˜๏ธŽ
โ“5 answered
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๐Ÿ“ฆ~ in 3 weeks
Updates frequencyโ†˜๏ธŽ
๐Ÿ–ผ๏ธGet Icon
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About

This app offers a high-performance PDF and comic viewer with realistic paper-turning animations. It supports various viewing directions, enhanced bookshelf management, and secure password protection for your documents. Easily import files from multiple sources and enjoy a customizable reading experience.

โœ“Realistic paper curl animation
โœ“Multiple viewing directions
โœ“Enhanced bookshelf management
โœ“Password protection
โœ“Dropbox and iTunes file import
โœ“Supports PDF, ZIP, CBZ, RAR, CBR
Show original description

What users say

Summarized from real user reviews of SideBooks. Based on 95 reviews and a 4.7/5 average, it highlights the 6 positives and 5 negatives reviewers mention most about this Books app.

Positive things

  • ๐Ÿš€Smooth page turning
  • ๐Ÿ“šGreat for reading comics and manga
  • ๐Ÿ—‚๏ธExcellent folder organization
  • ๐Ÿ”Useful search and table of contents features
  • ๐Ÿ’ปSeamless Dropbox integration
  • ๐ŸŽจCustomizable bookshelf display

Negative things

  • ๐Ÿ›Crashes when loading large files
  • ๐ŸšซLimited file format support (no CBZ/CBR)
  • ๐Ÿ”Difficult to find and delete books
  • ๐Ÿ”’Requires Dropbox access, no local file support
  • ๐Ÿ”Small thumbnail size makes it hard to browse
See all reviews

What's New in SideBooks

2.89.2

May 19, 2026

*Readjusted the behavior of swiping left to right to go back to the previous screen while browsing files in iOS 26 environments.

1

In-App Purchases

$0.99

Thema extension Add-On

Thema extension Add-On

User reviews

Most RecentHighest RatedLowest Rated

Own files

Yes, it can save my file to it but, one by one. There is no copy and paste to since its local library cannot be read. When I used open in. It just put one file in it when I selected more than 2 books. Hoping getting easy to get around my own files.

Everything is great. Shelfs and reading. Thank you.
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Mahmod RafiMahmod Rafi

Two page

Please add "two page view" in portrait mode too.
bdx78bdx78

Broken updates

The app changed some setting I assume for iOS 26 compatibility but now the text for the titles of the books is huge. Not sure what they did but the app is broke.

Test your updates!
LordunbornLordunborn

ใƒ†ใ‚ญใ‚นใƒˆ่กจ็คบใซใƒใ‚ฐใŒใ‚ใ‚Š

ๆœฌๆฃš็”ป้ขใงใƒ†ใ‚ญใ‚นใƒˆ่กจ็คบใซใชใ‚Šๅ›บใพใฃใฆไฝ•ใ‚‚ใงใใชใใชใ‚Šใพใ™ใ€‚
ใ“ใ†ใชใ‚‹ใจใ‚ขใƒณใ‚คใƒณใ‚นใƒˆใƒผใƒซใ—ๅ†ๅบฆใ‚คใƒณใ‚นใƒˆใƒผใƒซใ™ใ‚‹็พฝ็›ฎใซใชใ‚Šใพใ™ใ€‚
ใ“ใ‚Œใฏใƒ†ใ‚ญใ‚นใƒˆ่กจ็คบใฎใƒใ‚ฐใ ใจๆ€ใ‚ใ‚Œใพใ™ใ€‚
ใ‚„ใ‚Šๆ–น
ใ‚คใƒณใ‚นใƒˆใƒผใƒซๅพŒๅˆๆœŸ่จญๅฎšใฎใพใพใ€ๆœฌใ‚’้–‹ใใพใ™ใŒใ“ใ“ใงใฏไพ‹ใจใ—ใฆStandRackGateใ‚’้–‹ใใพใ™ใ€‚
ไฝ•ใƒšใƒผใ‚ธใงใ‚‚ใ„ใ„ใงใ™ใŒ้•ทๆŠผใ—ใ—ใƒ†ใ‚ญใ‚นใƒˆ่กจ็คบใ‚’ใ—ใพใ™ใ€‚
ใใฎใพใพ้•ทๆŠผใ—ใ—ใŸใพใพไธŠๅŠๅˆ†็”ป้ขใฎๆž ๅทฆใ‹ใ‚‰ๅณใธใ‚นใƒฉใ‚คใƒ‰ใ—ใพใ™ใ€‚
ใƒ†ใ‚ญใ‚นใƒˆ่กจ็คบใ•ใ‚ŒใŸใพใพ็”ป้ขใŒๆœฌๆฃšใงใ™ใ€‚
ๆฎ‹ๅฟตใใ‚Œใฏ็งใฎใŠใ„ใชใ‚Šใ•ใ‚“ๆฎ‹ๅฟตใใ‚Œใฏ็งใฎใŠใ„ใชใ‚Šใ•ใ‚“

Works Amazing

The app works great for me. i just add my mangas/comics and it shows up. Relatively easy to add them. Also works offline and in airplane mode.
ilikepennies_77ilikepennies_77
See 209 more reviews

User experience

๐Ÿž

Reported Bugs

3 issues

Crashes when opening certain PDF files

Bug

Corrupted files cause repeated crashes

Bug

Dropbox integration issues on some devices

Bug
โœจ

Requested Features

6 requests

Add support for ePub and other popular formats

Feature

Implement iCloud/Google Drive integration

Feature

Allow manual rearrangement of bookshelf

Feature

Add dark mode and customizable background options

Feature

Improve bookmark and annotation features

Feature

Implement a more intuitive file management system

Feature

FAQ

What kind of files can SideBooks open?

SideBooks supports a wide range of file formats, including PDF, ZIP, CBZ, RAR, and CBR. This makes it versatile for reading both documents and various comic book formats.

How can I import files into SideBooks?

You can import files into SideBooks through several convenient methods. These include network transfer via Dropbox, USB transfer through iTunes, and direct transfer from other applications on your device.

Does SideBooks offer any security features?

Yes, SideBooks includes a password-protected locking function. This allows you to protect your books and documents, preventing others from viewing them without your permission.

What makes the reading experience unique?

The app provides a unique reading experience with a curl animation that simulates actual paper page-turning, in addition to standard slide functions. It also offers multiple viewing directions and optimized zoom rates for a dynamic display.

Is SideBooks available on different Apple devices?

Yes, SideBooks is a universal application designed to operate on the iPhone, iPod Touch, and iPad, ensuring a consistent experience across your Apple devices.