image editingmacos
I am looking for a simple/fast, free solution that will allow me to get screenshots from different windows, crop areas that are interesting to me and adding some comments to them.
It's main use case would be to track UI changes in applications, so it would be a good idea to support layers.
On Windows I was using Paint.NET but this is not available on OS X. Also, do not recommend GIMP, it's free but not simple and loads really slowly.
You can use Time Machine. This page tells how to enable NTFS for writing from Snow Leopard.
In the end, I found Timecop that does almost everything I wanted: simple project tracking with a variety of configurable reports spanning days, weeks, or months.
Honourable mentions go to Tictoc which does a very similar job to Timecop, and Timing (which also has a free, Lite version). Timing is different in that its a "traditional" application tracker, however, you can create custom projects and drag applications into them, right down to the document level. So you can attribute different documents in a single app to different projects, which is great if you're working on two different projects in Xcode, for example.
Best Answer
Use Apple's built-in
Grab.appto capture screenshots, Apple's built-inPreview.appto crop, and the open-sourceInkscapeto annotate the bitmap.