Best synthesizer for ipad? (Thor alternative)

[festeringheap]

I'm typically a hopeless Propellerhead apologist, but there's simply no excuse for their abandonment of Thor on iPad.

It's a great and well designed iOS app. Especially how they managed to have the sections Expand like they do. It looks much better than desktop.
But it came before AUv3 really took off, and I'm not sure that they can have that kind of Expandability
within the AUv3 format. Can they?

With Reason's M1 update coming in a few months perhaps they will reconsider more cross pollination of rack devices over to iPad in the future since many of the compatibility barriers between platforms has been greatly reduced. I'd love to see Algoritm, Friktion, or any of their other newer devices with scalable interfaces brought over.

Same issue as above. Can they easily port over an RE and have it fit seemlessly into an AUv3 format?