Nice update to Annotable, my favorite image annotation tool for iOS: the latest version has brought support for wide color (pictures you edit will be saved in wide color without changing their color profile back to sRGB) as well as haptic feedback on the iPhone 7.
The latter is one of the most interesting third-party implementations to date: both in the app and the Photos editing extension, Annotable will give you feedback when you snap to the edges of a picture, when an oval becomes perfectly circle or a line perfectly vertical/horizontal, or when you’ve zoomed an image to fit. That’s a clever way to augment the user experience without cluttering the interface with visual messages, and it’s line with Apple’s adoption of the Taptic Engine for system haptics as well.