Buoh - Buoh is a reader for online strips comics.
VIZ Manga - VIZ Manga is a multi-platform app that serves as an excellent resource for fulfilling the needs of comic lovers.
Woofy - Woofy is a pretty neat webcomic downloader, designed for simplicity and ease of use.
comiXology – Comics & Manga - comiXology is a handy Comics & Manga app for iOS that enables you to browse more than hundreds of thousands of manga, digital comics, and graphic novels from popular publishers such as Image, Marvel, and DC.
ACMEreader - This comic viewer / comic reader lets you read your daily comics with ease.
Manga Storm CBR - Manga Storm CBR is the best-in-class app for accessing and reading DRM-Free comics in formats like PDF/CBR/CBZ on the iPad/iPhone.