Excellent: now we're getting to these "phase 2" apps…
Some of the initially available universe/solar system apps were fine, but this thing is just a level above. More than just immersive solar system, The first model I opened up was one that demonstrated that all of the planets would fit in the distance between the Earth and the moon.
The second one was showing the relative size of the solar system to our galaxy, approximated the ratio of a cookie to the planet earth.
This is the perfect platform for these kinds of scale relativity lessons that really seem to stick with me more than dry metrics of distance & scale. And the fact that there are apparently dozens of these little demonstrations, with a very generous helping in the free tier, seem to indicate that the developer went into this with the intent to do more than just toss up a "3-D solar system model" wrapped in a low resolution 360° Starfield.
UPDATE: Ooof: Pro subscription 20 bucks a month. That guarantees that unless you are a school putting this on your education budget, or just chucking money out the window, you're probably going to buy this for a month and absorb all the lessons you can and then cancel the subscription.
I see that there is a "pro" tier as well; I will have to see if there is enough value there to let the subscription ride, so to speak. It seems like a pricing model adjustment would let a lot more people be able to justify this kind of cost.
I'm still gonna try out pro for a month, and cheers to the developers for a really exceptional product 👍.