ScreenSteps

ScreenSteps screenshots

Note: ScreenSteps 2 (2.9) is no longer under development, and ScreenSteps 3 is planned as a cloud-based service, which you can read about here.
Main window
ScreenSteps 2.8 : Main window

Alternative downloads

Clarify
2.0.11
Annotate screenshots on your Mac.
Snapshot Editor
2.0.4
It helps you to capture screen, and annotate the screenshot image effortlessly.
Screenshot Editor
2.3
Capture screen and edit the screenshots on your Mac.