Comparison

SideBooks vs WoWo Comics

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

Head to head
About

SideBooks

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.

Highlights
  • Realistic paper curl animation
  • Multiple viewing directions
  • Enhanced bookshelf management
  • Password protection
  • Dropbox and iTunes file import
  • Supports PDF, ZIP, CBZ, RAR, CBR
Features
Read full description

SideBooks is a high performance, high speed PDF viewer that allows you to enjoy reading with the feel of actual paper. =Features= Curl animation that simulates the actual turning of paper pages has been added to the standard page slide function. Supports viewing from 3 directions, documents that open left to right, right to left and vertically. It provides the optimal environment for viewing any book. All zoom rates have been optimized providing high speed, dynamic screen display. An infinite hierarchy of folders can be created, moved, deleted, renamed, etc. using the enhanced bookshelf management function. Real visual bookshelf function that corresponds to back cover style display. Files can be imported by 3 methods, Network transfer through Dropbox, USB transfer through iTunes and direct transfer from other applications. Books can be protected so others cannot view them by using the password protected locking function. This is a universal application that operates on the iPhone, iPod Touch and iPad. =Functions= Overall: *Brightness Adjustment *Screen rotates to match the orientation of the device *Screen Rotation Lock *Password Protected Start-up Lock Viewer: *Support PDF,ZIP,CBZ,RAR and CBR format *Page Turning: Choose from slide or curl *Viewing Directions: Choose from opening left to right / right to left / vertically *Page Spacing: Choose form wide / narrow / none *Facing Pages: Choose the pair of facing pages by setting the cover to on or off *Trim function within the range of page display *Cache pre-read function for the previous and next pages *Set the display for each book and remember the page number of the last page read *Text search function (list display type) *Contents function (also supports hierarchy type) *Bookmark function (with editable memos) *Edit handwritten notes *Send to other applications (Open-In) *Send by email *Printing function (Air Print) *In-page link function *Link to outside URL function (built-in browser / Safari / Printing) *Display / Don't Display link buttons *Page turning function using tap or swipe *Expansion / Contraction function using pinch and double tap (1-1024x zoom) *Viewing of encrypted PDF files with password protection *Display / non-display of statusbar when reading Bookshelf: *Display form: Choose form list bookshelf / visual bookshelf *Function to set theme of visual bookshelf with each folder *Bookshelf thema extension pack (Add-On) *Cover editing function (corresponds to the trim) *File editing function: create, move, delete, setting for all books in folder *Bookmark list *Reading history list *Unread list *Edit of mark choose form already read / unread *Book name search function *Network transfer through Dropbox *USB transfer through iTunes *Direct transfer from other applications Special thanks to, "Give My Regards to Black Jack" SHUHO SATO Manga on Web http://mangaonweb.com

About

WoWo Comics

Manage and read local comic files in various formats like ZIP, RAR, EPUB, and PDF. Offers advanced editing, AI quality enhancement, and cloud integration for a seamless reading experience.

Highlights
  • Local comic management
  • Supports ZIP, RAR, EPUB, PDF, MOBI, AZW3
  • WebDAV and HTTP connection
  • Built-in image editor
  • AI quality enhancement
  • Auto page-turning
  • Folder categorization
Features
Read full description

WoWo Comics is a powerful image reader dedicated to providing an excellent local comic management software for comic enthusiasts. Features WebDAV and Web (HTTP) connection support. Supports importing and parsing files such as zip (cbz), rar (cbr), mobi, azw3, epub, pdf, etc. You can choose the import method that suits you to easily import comic files. Connect to WebDAV services to directly view file lists. Basic features are always completely free. Additional features: Built-in comprehensive image editor for free image editing View ZIP (CBZ) files directly in WebDAV services without downloading, reducing device storage space pressure AI quality enhancement for local files, no more worries about low-resolution images Auto page-turning to free your hands Main features: Automatic parsing of imported comic files (zip, rar, mobi, epub, pdf...) Edit and export files within comics Folder categorization Search for locally imported files Various sorting methods Directly read or download files from WebDAV servers Merge multiple files into a new comic Browsing history feature For any usage issues and questions, you can choose to: Comment on the App Store Provide feedback within the app Contact via email: wowtechstudio@hotmail.com [Paid Membership] After purchasing a paid membership, you can use all premium features and remove all ads during the service period. Continuous subscription plans include monthly, quarterly, and annual auto-renewal services. One-time plans include single-month, single-quarter, and single-year benefits with a one-time charge. The actual price of the above products is subject to change. The purchase price will be charged in your local currency according to the current exchange rate defined by iTunes, and payment will be deducted from your iTunes account upon confirmation of purchase. [Continuous Subscription Services] If you subscribe to monthly, quarterly, or annual continuous services, you authorize Window Reading to deduct the fee for the next billing cycle's paid version service from your iTunes account (referred to as "account") when your professional version service subscription is about to expire. The deduction time is within 24 hours before the billing cycle. If the deduction fails due to insufficient account balance, Window Reading reserves the right to suspend or terminate your paid version service without further notice. To cancel an already activated auto-renewal service, go to iOS device "Settings" → "iTunes Store & App Store" → select "Apple ID" → click "View Apple ID" > on the account settings page, click "Subscriptions" > cancel subscription. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SideBooks4 screens
WoWo Comics4 screens

Verdict

The call

The clearest difference is ads: SideBooks at none against WoWo Comics's shown. SideBooks also leads on ratings volume (97 vs 17) and iOS requirement (9.0 vs 15.6). On price, rating, review sentiment and update cadence 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. SideBooks sells 1 one-off in-app purchase and WoWo Comics sells 7 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SideBooks holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: SideBooks has 97 ratings behind it against 17, so its average is the more settled of the two. Written reviews split almost evenly too, at 74% and 73% positive.

UpkeepUpdate frequency

SideBooks ships an update every 9 days, WoWo Comics fortnightly. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
SideBooks versus WoWo Comics: the parameters behind the verdict, then further details
ParameterSideBooksWoWo Comics
PriceFreeFree
Rating4.6 (97 ratings) — better4.4 (17 ratings)
Positive reviews73.7% of reviews — better73.3% of reviews
Number of ratings97 — better17
Update frequencyEvery 9 days — betterFortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.6
Further details — not scored
Size32 MB150 MB
Age rating4+4+
DeveloperTatsumi-system Co., Ltd.顺 冯

Customer experience

SideBooks

All ratings97 ratings
Positive92.8%
Neutral2.1%
Negative5.2%
Written reviews518 reviews
Positive73.7%
Neutral9.1%
Negative17.2%

WoWo Comics

All ratings17 ratings
Positive88.2%
Neutral0.0%
Negative11.8%
Written reviews30 reviews
Positive73.3%
Neutral13.3%
Negative13.3%

Bugs and requests

SideBooks

Reported bugs

3 issues
  • Crashes when opening certain PDF files
  • Corrupted files cause repeated crashes
  • Dropbox integration issues on some devices

Requested features

6 requests
  • Add support for ePub and other popular formats
  • Implement iCloud/Google Drive integration
  • Allow manual rearrangement of bookshelf
  • Add dark mode and customizable background options
  • Improve bookmark and annotation features
Show 1 more
  • Implement a more intuitive file management system

WoWo Comics

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

SideBooks

One-time1
  • Thema extension Add-On$0.99
7 purchases

WoWo Comics

Subscriptions3
  • Monthly Subscription$0.991 Month
  • Quarterly Subscription$2.993 Months
  • Annual Subscription$6.991 Year
One-time4
  • Single Month Benefits$0.99
  • Single Quarter Benefits$2.99
  • Single Year Benefits$6.99
Show 1 more
  • One-Time Purchase$7.99

Questions

Is SideBooks free?
SideBooks is free to download, with in-app purchases available.
Is WoWo Comics free?
WoWo Comics is free to download, with in-app purchases available.
Which has better reviews, SideBooks or WoWo Comics?
SideBooks is rated higher. SideBooks averages 4.6 out of 5 from 97 ratings, while WoWo Comics averages 4.4 from 17 ratings.
Do SideBooks or WoWo Comics have ads?
WoWo Comics shows ads; SideBooks does not.
Which is updated more often, SideBooks or WoWo Comics?
SideBooks ships an update every 9 days, and WoWo Comics fortnightly. Most recently, SideBooks was updated on October 15, 2026 and WoWo Comics on October 16, 2026.

Other comparisons