Boorusphere - Yet another booru viewer for Android.
YACReader - Download YACReader for your platform. Windows, Linux, MacOSX. And enjoy you comic books cbr cbz with the best comic reader.
Imgbrd-Grabber - Very customizable imageboard/booru browser and mass downloader, with powerful filenaming features.
ComicFlow - ComicFlow is an iOS app that allows you to read comics by opening .cbr or .
Flexbooru - A booru client for Android, support Danbooru and Moebooru.
HoneyView - HoneyView is a fast image viewer that supports archived image file for comics/manga/photos.