More features are required. No table of contents (a huge time saver especially in large omnibus files containing entire runs of comics) for quickly navigating chapters. Works with all files I've tried so far. Loading times could be better. The "go to" feature is fair but the page numbers are imposed over the pages as you scroll. Fast scrolling blurs the page number so overshooting the desired page happens frequently.
A Google user
Would give it 5 stars, but I use the opds option and if the external IP to the server changes, you can't edit the existing server information in the app and have to completely sync the comics again from scratch which doesn't save your last read and what comics have been read already etc.
Scott Hahn
I really love this comic viewer above all the rest I've tried. Just an FYI, though. It seems that if your phone is rooted, root access must be hidden. Otherwise, Challenger kept freezing my phone when I tried to add folders to the library. Strange.
Richard Coleman
I really enjoy this app, until ... Recently all my PDF files have become unreadable. The text is too fuzzy to read, I've cleared the cache and reset all the options but no go. Other files are still great, just PDFs are too fuzzy to read. Other apps open PDFs just fine...
Victoria Miller
Updated from my former review: I posted about an issue I was having with the app, and not even 24 hours later, there was an update to fix it!! THANK YOU SO MUCH!!! Seriously, you won't find a better developer or a better app for reading comics than Challenger Viewer. This app is definitely in my top five must have apps on my phone!
A Google user
Finally, a comic reader that i can sync across multiple devices including cloud based (I've used Dropbox and Google Drive) or network based locations. Fantastic! i wish it had one feature though, to reset the read status on a comic. if you ever add feature I'd be thrilled.
Django Peerkhan
While the looks are definitely not as shiny and modern as one might expect, the functionality of this application blows the competition out of the water. If you are looking far a comic viewer that handels any and all filetypes, this is the one to get.
Sean Flynn
Great viewer, been enjoying for many years. Encountering a bug with auto loading of .rar files, where it won't automatically reload after the app cold boots. Tried all the different settings. What's annoying is it will auto load properly if you back to home and reopen it, so it's purely a bug.
Adam Wade
This is a great app, fast, intuitive and easy to use, and many options to customise how the comic/book displays. The only problem is PDF, it seems to not be able to render PDF properly and many times will appear fuzzy, especially when my tablet is in landscape. A number of my PDFs are unreadable on Challenger due to this and I have to use the tablet's default PDF reader which doesn't have the same intuitive interface. If this issue with PDF was fixed I would easily give this app 5 stars.
A Google user
Not possible to zoom. Very frustrating. Googling and cycling through the menu with its advance/basic toggle... No pinch nor double tap zoom. It does work on my Note8. But not my Samsung J3 Emerge. Eboox works good though... This is my go to reader when it does work. On my Note8 it's my favorite. But for books on my son's phone I am so frustrated trying to dig through settings and google to find how to zoom, just doesn't work.
