RecordMe 4+

… but it’s cheap, not very resource intensive, and it records. Exactly what I was looking for. So far, it hasn’t crashed while I’ve been using it- just when running in the background and not in use. I am using OSX 10.9

So I think I have purchasd 5 different apps today, all I wanted was something that would let me record video from my integrated iSight Camera and microphone and give me just a little flex room on things such as video size, audio type and such, iMovie was too clumsy and QuickTime Player not flexible enough. Every app I purchased had some sort of issue with El Capitan from no audio to skewed video to unreadable output files, all bad. Sixth time is the charm in this case, about to request refunds on the others and hang with this one, works perfectly and unless you need to change settings like I did, there is just one button that starts, stops, saves and plays back automagically. Don’t worry, this review is real, the app works great and the price is right. Enjoy!

Not sure what the negative review is about, but you click "Record/Save" it records, you click it again, it stops. Up pops a "save" box to name your file and decide which folder it is in. THE RECORD BUTTON AND SAVE BUTTON ARE THE SAME BUTTON.
Once you save it, it automatically pops up in Quicktime, ready to play. You can change resolution, frames per second, audio quality, select different cameras and Audio sources. You don't watch the video it in this app, you watch it in quicktime or in any other video app. Just click the file and it plays.
Not sure how such a simple app could be hard for any body to use. Take about 10 seconds to figure out.