Daily App: Union is a powerful image blending tool for iOS - tuaw.com

Daily App: Union is a powerful image blending tool for iOS tuaw.com Daily App: Union is a powerful image blending tool for iOS. by Mel Martin Apr 21st 2014 at 9:00AM. Union (U.S. $1.99) is a very well thought out tool that brings Photoshop-type power to your iPad or iPhone. It's the most impressive image blending app I ...