What are some alternatives?
When comparing snaggy and LabelMe Annotation Tool, you can also consider the following products
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Annotable - Ultimate image annotation & markup tool
LightShot - The fastest way to take a customizable screenshot.
Skitch - Skitch is a screenshot editing and sharing utility for Mac and iOS that permits the user to add...
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Annotate - Annotate (formerly know as Glui) is the simplest way to capture, annotate and share screenshots.