Dynavin 2004 4.8iS Head Unit Questions

[BimmerE38E53]

Hey guys. I see more and more posts about changing out the head units in the E53. I have a couple of general questions that hopefully someone can answer.

The Eanon head unit has its perks. I really like the torque app. Not so sure about using this head unit with DSP. Is there an option to purchase that automatically works with DSP?

The Dynavin head unit has its perks as well. The OBC still functioning is a plus. And the maps looks really nice (as far as I can tell anyway). But, can you download apps to the Dynavin head unit? I know there is an APPS folder on the videos showing them, but I have never seen anyone opening it and using an app.

My screen rarely even comes on anymore. It's just a white screen and I want to update the Head Unit, but I don't want to pay $1500-$2000 either. Hopefully someone can answer some of these questions.