From the Store description:
Comic Show is the ultimate must have tool to read, manage and organize your comic book archives this incredible app will leave you addicted with its simplicity and smoothness.
- Sync bookmarks
- Rich contrast effect
- Manga reading mode
- Transfer digital comic files through WiFi via Air Transfery integration
- Save bookmarks of your favorite pages.
- Continue reading from where you left.
- Capture pages to your camera roll.
- Easy to create collections
- Easy to delete already readed files
I gave it a try with a DRM-free file - the accepted formats are .cbz and .cbr:
It's hard to complain, this commercial app is well written and there will be a way to display just about any comic archive you come across. I'd have liked to have seen a simple multi-page public domain comic included in the initial trial bundle, to get the user off to a good start. You can buy this in the Store here (just over £1) or use the trial (as I did).