Magic Drawing Pad app suggestions

Howdy! I’ve had the MDP for a few weeks and though drawing on it feels great, I am very let down by the available software choices. I use an artist pro with artrage on Mac, so I’m a little lost in android world (good lord, artrage does NOT run well on the MDP).

There are really only 2 features I want-

1. The ability to make a custom brush

2. The ability to have a floating palette window

Does anyone know of an app that isn’t subscription based that has both of these? I’m pretty sure I can deal with anything if I had my colors close by and my brush exact.