FamTree - Build your family tree with the people who are still here

I built FamTree because I felt that most family tree tools are designed more like historical archives than something families actively use together today. I wanted to build something centered on the living family — where parents, siblings, cousins and other relatives can build the tree together, connect across generations, and preserve memories while we're still here. FamTree is now live on Google Play, and I'm looking for early users to try it with their families. I'd especially love feedback on one thing: what would make you actually come back to a family tree app regularly instead of building the tree once and forgetting about it?