For iOS users looking for a portable FT8 solution, you might want to give this a try. It can call CQ on its own and automatically run the sequence when someone replies—set it and forget it.
It adds about 3 oz to your pack(reduces $30 from your pocket) and frees up your iPhone for more important tasks. More details:
I’d never heard of a Cardputer before but I ordered one last week and successfully (I think) burned your firmware at the weekend. I’m yet to try an activation but the Cardputer ADV and QMX seem to be working.