I purchased a this app a few weeks ago. It's a little clunky and counter-intuitive, but I was able to figure out things pretty quickly. However, there are still some issues I just have not been able get a handle on. With most of these features, I figured I get to them later, so I concentrated on getting the content I have into the program. This approach lasted about week, until I went back to look up some of the content as a reference point for further content. Lo and behold, a large amount of information that I entered dutifully had just disappeared. The best I can figure out is that this app only maintains and saves the direct line of descendants, not brothers and sisters (of grandparents, etc.). So, I had met two of my great great aunts as a young kid. I had photos and stories from them. In fact, these two people were an early key to finding links to a multi-generational gold mine of information. However, MacFamilyTree saved nothing that I entered about them, nor any of their brothers and sisters, except for the one who was my great grandmother.
I'm floored and angry. I've wasted huge amounts of time and the money purchasing this piece of crap. I've tried contacting the developer's support team, but they haven't responded.
My advice... don't purchase this product. You'll be disappointed after a frustrating beginning with this counter-intuitive software. I want my money back! I bet they won't do it. And, I'd love to have them pay me for my wasted time.
I'm using Mac OS 10.15.7 Catalina.