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Telestream ScreenFlow® offers high-quality screen, video, audio, and iOS capture, exceptionally powerful editing features as well as a new Stock Media Library option, ScreenFlow helps you create incredible looking videos, animated GIFs, and APNGs with unprecedented ease. You won’t find an easier to use or more intuitive interface for editing video.
I love Screenflow although the last couple of updates have been getting pushed out a little buggy. I'd rather a less frequent cadence at a higher price point. Screenflow itself is awesome - I've yet to find something better.
The updates don't always add much, but they are optional, and the previous version(s) still do a really good job.
I've been using Screenflow to create videos for our Help Center and am just starting to use it for gifs.