I am using an IFLY gps/screen for NAV which has a $69 per year subscription for the US sectional charts


I was originally going to try Avare on an android but gave up on that.



The IFLY also is supported by, and, links via wifi to the uAvionics ADS-B in/out which I have installed - the ADS-B in plus weather works with no additional cost on the IFLY. Haven't looked into the new additional ads-b in features but I suspect uAvionix and IFLY are working on that.



I believe the total cost for the Uavionix in/out and the IFLY (not including the chart subscription) came in at about $1800.