Nearly two years later, customers demand iCloud integration more than ever from third-party developers, but it’s a total mess to implement. “iCloud hasn’t worked out for us,” wrote Daniel Pasco, CEO of development studio Black Pixel this past week. “We spent a considerable amount of time on this effort, but iCloud and Core Data syncing had issues that we simply could not resolve.” Pocket lead developer Steve Streza piled on with a cutting tweet: “Remember that @blackpixel has many of the brightest people in Cocoa development. If they couldn’t get iCloud working, who can?”

Ellis Hamburger provides for The Verge the finest piece on why iCloud doesn’t work. Everything you need to know might be just there. 

Apple’s broken promise: why doesn’t iCloud ‘just work’? | The Verge