Photo Stream is one of the signature features of Apple’s iCloud initiative. It allows you to automatically sync all the photos you snap on your iOS device with every other iOS and Mac you own. It’s a smart system that makes managing photos across multiple devices a bit easier. With Carousel, however, Adobe has developed a set of photo sharing and editing applications for iOS and the Mac (with Android and Windows version coming soon), that easily rivals Apple’s efforts and easily best it in many areas. Carousel, just like Photo Stream, automatically keeps your photo libraries in sync. But unlike Apple, Adobe also includes numerous editing features (using the processing engine found in Photoshop Lightroom) and makes sharing your photos with friends and family members a lot easier.