• Challenger Viewer Donation 1
  • Challenger Viewer Donation 2
  • Challenger Viewer Donation 3
  • Challenger Viewer Donation 4

Challenger Viewer Donation

Challenger Viewer Donation is an advanced comics, manga, books and PDF viewer.There is a FREE version available on Google Play Store.The Donation version is exactly the same (no extra features) and donation will help me to improve the app.
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).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, 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 and french)
• 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 !

Category : Comics

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Reviews (30)

Tim. S. Aug 8, 2021     

Donated because it's worth every cent and more. Been using this for years and it's always kept the consistency. Takes time to tweak exactly to your preferences but once you've done so, it's bang on. So dev; I do have a bit of trouble accessing Google drive though. 'Unable to access drive: null'. If you get the chance, advice on getting around that would be much appreciated. Love what you've done here.

Mos. E. Sep 15, 2021     

Best comic reader ever. I use it for cbr and cbz (rar and zip) and works like a charm. Customizable view, gestures and hard key functions. It's laudable how is free and add free even if you don't pay. I made a donation, Android may told me it wasn't optimized for the last Android version, but still works smoothly (I think they solved that in the last update anyway). Only thing missing is a way to remove pages from the books, and the files themselves.

Sam. M. Mar 17, 2020     

Excellent if it works for you. Sadly after upgrading to OP7tPro on Android 10, it no longer works for me. This was always my favourite reader, thanks to the vertical continuous scroll reading option. Actually it now appears to be abandoned, having last been updated in 2017.

Mik. C. Jul 14, 2021     

Been using the free version of Challenger Viewer for years. It's always been excellent, as I have a large collection of comics and books. Didn't realise there was a donation version until a few days ago. Only too happy to support its further development.

Les. G. Feb 16, 2019     

Great app. I really appreciate the developer doesn't bombard you with ads on the free version. Challenger is easy to use and good for not only comics but also visual art book pdf files like Simon Stalenhag's "The Electric State" or Corwin Prescott"s "Temperance". The donation is small. If you get a lot of enjoyment out of the app. Please consider donating.

Ubd. May 1, 2019     

Thanks for the awesome app. Haven't had to look for another comic reader in years, since I found this app.

Cri. Oct 9, 2020     

This is True Good Reader. Better of all "Pro" Readers here on Google Play Store.. This is The Only One, The Best of The Best👍👍👍 Ten Stars of Compliments for The Developer 👍👍👍 Thanks 👍

Rob. S. I. Jul 11, 2020     

It's the best comic viewer I've ever used.

She. T. Sep 14, 2020     

Great comic book app. It gets the job done.

Tj. M. May 26, 2021     

Love the bought it just to give them some money.

Tim. R. Aug 1, 2018     

I've been using the free version for more than 5 years and reading comics has been a pleasure with this app. I really appreciate the fact that this was an ad-free experience. The UI is simple and clean with no unconventional nuances. Here's my money! P.S. If you could make an iOS app it's would been awesome, since I read comics on my iPad too.

Che. M. P. Jun 4, 2018     

Please add a scanning feature to the app. This is so I can get all of my content in one spot. Thank you.

A. G. u. Nov 20, 2018     

Paying is completely optional and you don't lose any functionality if you just use the free version. But absolutely worth it to support a hard working developer.

Emj. E. May 23, 2017     

Well worth the price, seriously. Yes the free version is identical but the functionality and versatility of the app is worth the money...particularly as you'll have to re-add your comics and books if/when you upgrade.

Pet. L. Jul 22, 2016     

Do not update unless you want to set everything up from scratch again. I had a sweet setup and it's reset everything to default. I only wanted the quicker library function. Oh well :-(

Em. L. Jul 18, 2016     

I had the free one and it's worked for me so well I just wanted to donate and say Thankyou -and also be supporting it too :D

tre. May 22, 2016     

Love this app. I have had no problems loading anything thus far. The plethora of options is a testament to the devs interest in their work. Used other readers and this is my favorite. Happy to spend a few dollars for an excellent tool like this to support someone who cares about users.

Jos. W. Aug 28, 2015     

I was looking for an app with connection to cloud storage. There were some issues loading some of my comics; but, I emailed the developer and it was fixed in the next update. The app is well worth the donation. Thanks!

Jam. L. Sep 17, 2015     

I love the controls, the fact that it actually works, everything. I can't imagine what could come from continued development, but I'm glad to pay my part.

Nat. P. Sep 21, 2015     

Such an amazing job on the app. Simple and easy to use. No ads. Definitely donating to this app. Hope there's more in the future.

Dir. M. Nov 8, 2015     

This reader is a must have for anyone that loves reading comics. Absolutely the best.

K.. T. Sep 22, 2015     

Does an amazing job. Some decent frills. Worth donating to!

Eri. S. Oct 2, 2015     

What can i say? Just shut up and take my money!

Gav. C. Oct 12, 2015     

Awesome app! I love it and was happy to donate

Dav. B. Jun 5, 2015     

Very nice app. I love the Google Drive support because it fits perfectly in my eBook, comic library concept. Great work guys. One feature suggestion: It would be nice to have some extended library options (Meta data for comics etc.) that you can enter for comics and save in the cloud. Hope something like that will be available in the future.

Sat. N. May 21, 2015     

This app gave me hours an hours on joy of reading mangas, and novels. You made this app all for free without adds. (Cloud integration would be awesome)

A. G. u. Oct 2, 2014     

It works great for cbr files. Only thing i would add is for the app to remember where I'm at in the comic when i load another. Oh and sometimes for some reason every page im on flickers back to the top of page when I'm scrolling down midway. Annoying but doesn't ruin it for me. Worth donating otherwise. (-:

joe. i. Oct 5, 2014     

The title of the review says it all! Great app and though it was free, I felt I had to get the donation version as a way of thanking the developer. Great job!

Pj. Oct 20, 2014     

Use regularly, glad to pay for something so worthy.

And. L. Sep 6, 2014     

This is a great app for both cbr and pdf! If I had one request it would be to let us move the "folder count" number to a different corner so it didn't cover the title.