If you're flipping houses, these are the must-have organization apps that will help you streamline your processes. Dropbox Sharing pictures and files between companies and individuals could not be easier and more professional than through Dropbox. Sharing and saving progress photos into organized folders is much more professional and orderly than rummaging through old text message threads, and professionals from many businesses use this as their main workhorse for sharing data. All photos, text, audio and other media are instantly shared with added users once dropped into Dropbox. It’s a really cool app that makes perfect sense for flippers. Dropbox