I have had the free version for years. I hesitated on paying because I was not sure that it contained some features.
Please know that Distant Suns Max DOES contain
1) position awareness... The screen moves to where you are pointing
2) it can draw the images of the constellations for you (per setting/preference)
3) when you look through the floor/ground it shows you the southern sky
4) it does have a red screen image, to help preserve your night eye sensitivity
5) it will also jump to show you the sky on a date/time you select
God bless you, Distant Suns development team!
Keep looking up!
Mike VV. about Distant Suns 5