ColourComics is a comic viewer application for iPad, iPhone and iPod Touch that supports .cbr, .cbz and .pdf file formats with the following features:
Search your comic collection with the search text control and sort alphabetically, by last read date or the date the comic was added to your collection.
Saved searches are stored automatically as entered to give you immediate access to every part of your comic collection.
Select a comic archive in the horizontal scrolling preview list and see pertinent information.
Tap a selected comic to view to enter the comic viewer.
Comics can be viewed full-screen, using all available screen real-estate, or sized to fit entire pages regardless of aspect ratio with a double tap.
ColourComics automatically keeps track of the last page read of every comic, including the date the comic was last read.
While archives may be added via standard sync with a computer, ColourComics also supports receiving archives through the Dropbox application.
With a library of comics stored on Dropbox, you have access to it all wherever you have an internet connection.