I ran across this review of GIF Brewery 3 and was blown away at the app.
When creating tutorials for posts, I prefer to use animated gifs since they will play right in the browser and are lighter then including video clips. Unfortunately, my workflow for creating them required me to record a screencast in Screenflow, export as a movie, and then use CloudConvert to actually created the animated gif. No longer!
The application can make animated gifs from screencasts, the webcam, or from iOS devices. The application is currently free until the 12th, at which time it will be priced at $0.99 until the 19th when it will revert to its full price of $4.99. Check out the review linked above for more information.