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 : • A