MagicPlan on a mobile or Tablet fulfills a lot of what you want and transfers measurements to 2020 Design. However, I recently bought a cheap Chinese (Chuwi) Windows 10 Tablet and it runs Design V11 with no issues albeit slow renders. The tablet has a 12″ 2K screen, 4GB of RAM and cost me under $300.
You can pick up other Windows Tablets or 2 in 1 devices so cheaply now (around $300) not sure why you would bother with an iPad or whatever. Technology has moved on.
Use a Windows device in the field and save to a Cloud Drive. You can even begin the design if you want. When you are back in the office, shift your 2020 key to your (faster) office computer and load up the 2020 file off your cloud drive and work on it.
I’m afraid I can’t really see much advantage to an Android/IOS crippled version of the software. 2020 are even talking about moving towards cloud based licensing so in a while you may not even have to carry the USB security dongle.
Another advantage of the Windows tablet is that it can interface with such items as Bluetooth enabled Laser Tapes and has it’s own camera.
Come to that, why not dump the office computer altogether and take a Windows Surface Pro i7 onsite – it renders VERY well and is a superb bit of kit. It also happily connects to a full size screen/keyboard/mouse in the office. Win/Win.
