A word of caution on the AirCrew device, linked above.
I, along with a hangar pal ordered one in Summer 2018. After countless excuses and delays, it finally arrived in November or December. And didn't work.
Both were sent back. I ended up getting a full refund, and ended up buying a new aircraft with Dynon kit. My mate also got a refund, but is holding out for it to (finally) be released. He's still waiting over a year after the original delivery date.
It might be a great device when it comes out, but I'd wait until a few have been delivered before committing.