I've been doing indie Mac software since around 2003. Mostly full time with some consulting mixed in. I've had varying levels of success. Generally business grew into (enough to support me and three others for a few years) until around 2012. Then down down (with very little bumps of success in-between). Since 2012 it's been just me. I make less than I would in a "real" job. Sometimes quite a bit less. Even with Bike's recent success I'm mabye making less than average US programmer.

Some of this is likely due to indie being hard. Much is also due to me being mostly programmer driven, not business driven. I am doing many stupid things business wise. But I also get to work on exactly what I want to work on.