Are you trying to earn a buck with your camera? Do you use an iPhone or iPad to help in that endeavor? Then you need to check out this list of 90 awesome apps for freelance creative types. Some of them may be more specifically suited to graphic designers, but the art and productivity apps for freelancers found in this list are sure to be of help to many photographers as well. Whether you want to make sketches on your phone’s touchpad or figure out how to bill more appropriately for your time on a shoot, there’s an app for that—and you can probably find it in this list.