Given the issues with my former screen-capture app-of-choice Skitch, I recently went on the hunt for a replacement that can grab screenshots and handle video capture. I've finally landed on Voila. While it isn't perfect, Voila offers plenty of functionality and does almost everything I need.
As is pretty standard for a screen-capture app, Voila lets you grab whatever is on your screen however you need it, either in a full-screen grab, from a specific window or from a drag-and-drop selection. You can grab videos in almost any configuration. I mostly use it for snapping rectangular pictures, but you can grab circular or polygonal pics as well. Voila even has an in-app browser and a connection to your webcam, for even more options.
Once the picture has been captured, you can add annotations, blur or adjust it as you like and then export the file using an in-depth "Save As...". Unfortunately, this process isn't as simple as I'd like. You must hunt to find some functions, and while hotkeys can be set up, the Re-size function doesn't have a clear one. There's a re-size option on the save screen, so even when Voila doesn't have exactly what I'm looking for, it does have some fairly smart shortcuts.
There are a few bugs in the app as well. One bug I'm getting recently has my pictures being saved as just a white screen rather than whatever I captured, but the support team has been more than ready to help with any problems or concerns.
As for video capture, I think that's where Voila really shines. It's got a very powerful and steady video-capture functionality. You can select a window or draw a selection on the screen, and you can choose to use an external mic for audio, grab your computer's audio or use your Mac's internal mic as needed. Again, there are some small issues: The included YouTube connection won't accept videos if you've used a strange ratio when drawing a selection on the screen. But that's only a minor issue. I've still been able to just drag the videos out of the app, and then upload separately to YouTube.
Voila isn't without its problems, but an app like this is designed for so many different use cases that it's not surprising there are a few hiccups. Plus, Voila is right in the middle of an awesome sale. It's only US$4.99 on the Mac App Store. If, like me, you were looking for a Skitch replacement with a little more functionality, Voila might be just what you need.