You may have to do a demonstration of a product, show a new technique to solve things on your computer, technical support, or taught other things on your computer. Whatever your reality, may be in the case where an application consider to use a screencast. Today we had this situation and we had to seek alternatives, this is what we found:
Non free applications:
- ScreenFlow: http://www.telestream.net/screen-flow/overview.htm [$99]
- Mouseposé: http://itunes.apple.com/us/app/mousepose/id405904955?mt=12 [$4.99]
- Screenshots: http://itunes.apple.com/us/app/screeny/id440991524?mt=12 [$14.99]
- Camtasia (Mac): http://www.techsmith.com/camtasia.html [87.50€]
It's clear for the price, Mouseposé perhaps would be the first application to try.
On the other hand, if there are no major requirements you perhaps should consider the following alternatives, that being free means not having lower quality, but maybe different benefits: