USD$10 with 1 year of updates. Consider Sip as the professional version of Digital Color Meter, it is the best color tool built for pro-user in mind, providing seamless integration to professional workflows and applications. I love how It docks color palettes on top of the screen in a minimalist way, allowing cross-app usage. v2 is available now with more useful features and new pricing model.
Recap of Apple's WorldWide Developer Conference in 2019, with the announcement of iOS 13, SF Symbols, SwiftUI and more.