Yes, I use Litchie. Once learnt it is veryn powerful and easy to use. You can plot out a flight grid easily, and determine speed flying height gimbol angle and tasks for the camera.
Litchie is the only other software other than DJI Go that I have used, so cannot compare it to the previous suggestion in this thread.
I have flown several mosaics locally for a charity, as a volunteer (no money involved). I use the Image Composite Editor to knit the images together. Best solution I have found is to video the flight, the software will sort out images etc from that.
Good luck, its an interesting learning curve.