Screen video capture application

I've found that "New Screen Recording" functionality in QuickTime Player combined with iMovie editing capabilities is enough for my needs. Maybe you can give it a try? Best of all, it's already installed on your Mac. Unfortunately, I can't compare it with Camtasia, as I haven't used it.

After some research I've learnt that for the second use case you can use a separate program that does mouse magnification and keystroke detection in conjunction with a regular screen recording program like Quicktime Player (included on Mac OS X). Mouseposé seems the most recommended one.

As for a standalone screen capture program that has more features than Quicktime Player, I've found four that are maybe the most widely used ones:

• ScreenFlow
• Camtasia for Mac
• iShowU
• Snapz Pro X

ScreenFlow offers mouse cursor customization, and iShowU offers keystroke and mouse action recording, for showing in the video. ScreenFlow, iShowYou and Camtasia are looking great. Snapz Pro X seems more focused to regular screenshot capturing, but does video as well.

There's a question about recording the screen of an OpenGL application without stuttering here at StackExchange.

My firsthand experience with ScreenFlow has been great for creating tutorials. It includes cursor magnification, cursor and window highlighting, etc., and a decent editor.

I agree that Camtasia looks great, too, but I've not tried it.