Digital comics offer a tremendous value to newer readers with affordability and steady prices for back-issues. However, after careful inspection, you should shop around for the best value.
DC Comics for the most part, lowers prices on their digital comics after a month has passed from that title's release date. It's a great incentive to get readers to try out titles from their normal shopping habits. It does make a small difference where you download the lower cost back-issue title from though. Comparing both the standalone DC Comics app and Comixology app, which incidentally provides the service to DC Comics, you'll notice a significant change in price, for back-issue comics:
DC Comics App (left) and Comixology App (right)
Our advice: shop around before you take that digital leap!
Download the DC Comics App for iPhone and iPad: