I am on a 10,5” iPad Pro.
That’s what I did I with it so far:
You can scroll up and down to see what I did.
RAM is the culprit as the developer always underlines.
That means, it doesn’t matter which iPad Pro you have, as long it is not a 9,7 Pro with 2GB RAM or newer iPads pro starting from 2021 or the iPad Air 2022 wich do have 8GB RAM / (16GB for 1+2TB)
iPad Air 2022 does have 8GB RAM as well.
All others do have 4GB RAM till the 2021 versions.
With the exception of 1TB versions from 2020 with 6GB RAM.
I experience some limits if I go above 4 millions polys. But this is just a rule of thumb. Depending on the amount of layers, which are memory hungry, or the amount of instances, which are memory saving, one can go up 20 million, but only with instances - be aware you’ll be not able to validate anymore on your older ipad.
I use very good decimate, depending if project target allows this.
So, yes! You can do a lot. The app is not expensive compared to what is offered, it is extremely affordable. Check yourself.
But be aware!
You’ll never stop again 