Skepilot
Pre-takeoff checklist
With iOS 18, you can send text messages via satellite when there’s no WiFi or cell signal. I know a few who say it works in their GA planes. How many of you have tried it? How reliable / consistent is the sat signal?
About Messages via satellite on your iPhone - Apple Support
With iPhone 14 or later, you can send iMessages or SMS messages via satellite when you’re off the grid with no cellular and Wi-Fi coverage.
support.apple.com