SideBooks vs Booklover
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Realistic paper curl animation
- Multiple viewing directions
- Enhanced bookshelf management
- Password protection
- Dropbox and iTunes file import
- Supports PDF, ZIP, CBZ, RAR, CBR
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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
Booklover
Organize and read a vast collection of eBooks, including PDFs, manga, and scanned books. Seamlessly sync with iCloud Drive and customize your reading experience with advanced reader settings and library management tools.
- Manage and view eBooks (PDF, ZIP/CBZ, RAR/CBR)
- iCloud Drive syncing
- Organize books by genre and bibliographic details
- Powerful search and Library Navigator
- Customizable reader settings
- Bookmarks and PDF annotations
- Support for archived image files
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Booklover is a highly responsive and robust eBook reader. It excels at handling PDFs, manga, and scanned books. The metadata-driven library management system makes it easy to organize and enjoy a large collection of books in PDF, ZIP/CBZ, and RAR/CBR formats. Seamlessly integrated with iCloud Drive, books in the iCloud Drive/Booklover folder automatically appear in the app’s library and can be downloaded on demand. In the library, you can organize books by genres and arrange them using various bibliographic details such as title, author, publisher, and more. With the search field and powerful Library Navigator, you can quickly locate a book among thousands in your collection. Customize your reading experience with settings for each book, including page layout, transition axis and style, cropping, filters, progress direction, background, and more. Booklover supports bookmarks with titles and notes, as well as PDF text annotations (highlights), text search, and a table of contents. Main Features: # General • Manage and view eBooks (PDF, ZIP/CBZ, RAR/CBR) • Support for archived image files in JPG, PNG, GIF, HEIF, WEBP, AVIF, and JPEG XL formats • Automatic syncing of book files placed in iCloud Drive/Booklover. On-demand caching (download) of the remote files • Import files via iTunes (Windows), Finder (Mac), AirDrop, Drag & Drop, "Open with..." etc. • Import files via apps from various cloud storage services, such as Dropbox and OneDrive, as well as other services accessible through the iOS Files app. • Slide Over / Split View (iPad) • Hardware keyboard support (mainly in the reader) # Library • Section books by genre (ON/OFF) • The Library Navigator (ON/OFF) • Histories of added and opened books • Context Menu for individual books (long-press a book cover) • Change sort order: By Title, Author, Publisher, Filename, Added Date, etc. • Alphanumeric Index Labels (ON/OFF) • Toggle display of cover accessories • Adjust cover grid size • Responsive Shadow (shows page volume with shadow) • Filter books by Status, Genre, Tags, etc. • Search books by various bibliographic details, file name, and tags # Reader • PDF text annotations (highlights) with notes, text search, and a table of contents • Bookmarks with titles and notes • Lists of bookmarks and PDF annotations • Page transition settings: Axis (Horizontal, Vertical), Style (Scroll, Continuous Scroll, Stack, Crossfade, Zoom fade, Instant) • Progress direction setting: Left to Right, Right to Left (for vertical text, manga, Arabic, etc.) • Page layout setting: Automatic, Single-Page, Two-Pages (spread) • Separate page layout settings for view orientation (Portrait / Landscape) • Page trimming (for images only) • Page sizing: Show All, Width-Fit, Height-Fit • Page thumbnail view (overview, bookmarks) • Image correction filters • Dynamic background (When the "Background Color" option for a book is set to "Dynamic") • Adjust page spread position (Insert adjuster page at the beginning of the book body) • Text recognition within images (with compatible devices only) • Export (share) the currently displayed page # Book Management • Edit metadata: Title, Author, Genre, Publisher, Published Date, ISBN, etc. • Edit Tags (Can be used as filter criteria in the side menu) • Extract metadata (title/author) from PDFs • Extract various metadata from file names with configurable extraction rules • Automatic/Manual cropping of book covers • Batch modification of book settings and metadata • Transfer book files: "Open with...", AirDrop, Drag & Drop, etc. • Can manage the content files and data separately ("Ghost Book") ——————————————— # Acknowledgments [Books used in the screenshots] • "Give My Regards to Black Jack" by SHUHO SATO (Manga on Web: http://mangaonweb.com) • Public domain books from Feedbooks (http://www.feedbooks.com) • Public domain comics from digitalcomicmuseum.com (http://digitalcomicmuseum.com)
Screenshots
Verdict
The clearest difference is price: SideBooks at Free against Booklover's $3.99. SideBooks also leads on iOS requirement (9.0 vs 18.6). Booklover's advantage is in-app purchases (none vs 1) and review sentiment (87% vs 72%). On rating, ratings volume, update cadence and ads 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
SideBooks is free to download; Booklover costs $3.99 up front. SideBooks sells 1 one-off in-app purchase. Booklover asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for SideBooks against 4.6 for Booklover. Both are backed by a comparable volume of ratings — 97 and 57 respectively. Written reviews are what separate them: 72% of SideBooks's written reviews are positive against 87% of Booklover's.
SideBooks ships an update every 9 days, Booklover fortnightly. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.
| Parameter | SideBooks | Booklover |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.6 (97 ratings) | 4.6 (57 ratings) |
| Positive reviews | 72.4% of reviews | 87.0% of reviews — better |
| Number of ratings | 97 — better | 57 |
| Update frequency | Every 9 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #20 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 32 MB | 22 MB |
| Age rating | 4+ | 17+ |
| Developer | Tatsumi-system Co., Ltd. | Plastic Software, Inc. |
Customer experience
SideBooks
Booklover
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
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- Implement a more intuitive file management system
Booklover
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SideBooks
- Thema extension Add-On$0.99
Booklover
No in-app purchases









