App to annotate images I know Preview can annotate images, but does anyone know which app is used to create the style of arrows in the following image?


(This appears in https://apple.stackexchange.com/a/220496/251846, but the author has become inactive, it seems.)
Looks like Skitch which can be downloaded from the Evernote website as well as from the App Store. AFAIR it works without an Evernote account.