Challenger Comics Viewer

4.2
21.8K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Challenger Comics Viewer is a FREE (NO ADS) advanced comics, manga, books and PDF viewer.
It's really simple to use. You just have to scroll ! Pages are automatically loaded and displayed (no need to click to go to next page).
It's FREE and THERE ARE NO ADS.
This version works perfectly on phones AND tablets.

Supported image file formats are JPG, PNG, GIF, WebP (Android 4.0+) and BMP.
Supported book file formats are PDF, CBZ/ZIP, CBR/RAR, CBT/TAR, CB7/7Z, DjVu and ePUB.

Main features are :
• Automatic page loading
• Zoom using multi-touch
• Vertical/Horizontal scrolling
• 2 display modes (Simple View which displays pages one by one and Multiple Image View which displays all pages one after the other)
• Scale filters: Bilinear, Bicubic, Lanczos4
• Library with covers displayed to quickly open comics (multiple kind of views available)
• Automatically switch to next issue when last page of the comic is displayed
• Border cropping
• Read from left to right or right to left
• Actions can be customized
• Single page and "2 page" display mode
• Filter to improve displayed image quality
• Manual scrolling by moving finger on screen
• Autoscrolling by long pressing on screen
• Tap to go to Next/Previous pages
• Fit to Width/Height/Screen display
• Multiple Image preview type
• Option to direct access to page
• History management
• Support multi-language (for now, english, french, russian, italian)
• Border can be display over Bitmap to easily identify each pages
• Contrast/Brightness/Saturation management
• Screen brightness management
• Application can be moved to SD Card
• Cached data can be stored in internal memory or SD Card
• Supports Samsung "Multi-Window" mode
• Color themes

Files can be accessed on the device or network.
Supported network protocols are :
• Google Drive
• OneDrive/SkyDrive
• Mega
• Ubooquity (http://vaemendis.net/ubooquity)
• DLNA/Upnp (Need Android >= 4.0.3)
• OPDS (beta)
• Windows/SAMBA/CIFS
• DropBox
• Webdav/Cloud (like box.com, 4shared.com, alwaysdata.com, ...)
• FTP
• SFTP

The application needs a phone/tablet with lots of memory and a powerful processor, so don't be disappointed if your phone is quite old and performance is not good.
For instance, it works perfectly on Nexus 4, Nexus 7, Nexus 10, Galaxy S2, Galaxy S3, Galaxy S4, Galaxy S5, Galaxy S6, Galaxy S7, Galaxy Tab, ...

Documentation is available at : http://challengerviewer.wordpress.com/challenger-comics-viewer-documentation/
An FAQ is available at : http://challengerviewer.wordpress.com/challenger-comics-viewer-faq/
The English forum : http://forum.xda-developers.com/showthread.php?t=1389440

Please add comments if you like this app or if you have some new features idea.
To report bugs, don't hesitate to send me e-mail.
Thanks !
Updated on
Dec 12, 2021

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.1
17.8K reviews
Amateur Programmer
February 15, 2021
A lovely little online/offline comic viewer. Zero ads, decent variety of file formats, EXCELLENT variety of online file sharing services (I hadn't even heard of Ubooquity), and EVERYTHING is configurable - back key action (any screen in the app), volume keys (vol-up can go forward, backward, or just adjust volume), you can set a fixed screen orientation, turn off the page turn animation... I should mention I haven't tested the online functionality at all, but it looks quite extensive.
8 people found this review helpful
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A Google user
October 1, 2018
"Google drive" is hidden behind "Open Web". Google Drive is not a website. I never tried it since I wasn't trying to open a comic from a website, but rather from my drive. There are a number of very, very basic UI expectations which are hidden; to select a directory to upload to a new comic book library, you have to long-select any individual file in the directory you wish to add and wait for a pop-up to ask you if you want to use the whole directory. The app is functional but has some fundamental UI/UX issues.
38 people found this review helpful
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The Challenger
October 1, 2018
To open a Google drive file, you should use "Open Web" action and then choose "Open Drive". To add folders to library, you should use "Add Web" action and then choose "Add Drive folder". About file associations, depending of you Android version/Device, third party applications (not pre-installed on device) can be unable to register file association
A Google user
December 26, 2018
Generally works well, but I'm experiencing a strange issue: the image quality is worse in portrait mode than in landscape. I'd like the option to read in either without this compromise. I'm on the Google Pixel 2, but my friend has the same issue and he has a different phone (not sure which though).
6 people found this review helpful
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What's new

Version 3.0.0:
• Ask for storage permission on Android 11 and above (Required to publish new application updates)
• Added support of XPS file
• Added an option to manage Ultra High Resolution file (in Options => Performance => Ultra high resolution file management)
• Added an option to display epub like other files (in Options => Display => Epub books display mode)
• Added an option to display/hide navigation bar (in Options => System => Hide Navigation bar)