Here we are probably talking about the most used app to record everything that is happening in our computer’s screen.
Screenflow is incredibly powerful and easy to use. If you have to edit a video, create a screencast, make a presentation, record a tutorial for YouTube, Vimeo or one of your clients, give it a try. There is a free trial available. There’s no time limit with the trial, but your exported videos will be watermarked.
Believe me, probably the vast majority of tutorials you watch on YouTube have been made using this tool.