Comic Rack is a great CBR and CBZ reader, allowing you to read all your downloaded comics on your phone and tablet with ease. The interface is fantastic, with comics presented on a virtual shelf. Comics you have read can be opened on single or double page spreads, and when closed Comic Rack remembered where in a comic you are up to.
You can rate your comics, and easily look up short plot synopsis's directly from the app. Finally, it features the ability to sync with windows when you plug your device in via a USB, allowing for your comic libraries to be identical on all your devices.
If you read comics on the go, then Comic Rack is for you.
In the words of the developer:
Read your eComics anywhere and anyway you want.