+x DMOIN - 5/12/2020 6:02:38 AMGood, read your message but I am now flying since 11 years now 550 hours. Not much maybe but I am a privateer and have to earn some money..... 10 out of 11 years I have used my iPhone or iPad as main source for navigation. NEVER in these 10 years they ever failed while the EZpilot and Garmin did (lost GPS signal) So if I would rate your opinion I would say it is an educated guess or position as it has no solid background except that you cn draw the certificate Garmin did and Apple (for good reason) did not. Apple don't want to be a supplier in this industrie, but hat does nt say their HW is unreliable.