Precision Altimeter built into iPhones/iPads

[Garfly]

I hadn't realised till now that from the iPhone 6 on - and recent iPads - there's an inbuilt pressure sensor that can be exploited in software to display a standby pressure Altimeter.

 

With the Belite app you can also add a piece of bluetooth hardware - from Texas Instruments - that provides temperature and humidity data to yield real time density altitude info on your iOS device.

 

Precision Altimeter IOS APP

 

 

I see, also, that the recent version of Air Navigation Pro is able to source that data too, thus showing pressure altitude - as opposed to the usual GPS derived altitude. I wonder if OzRwys and AvPlan have any plans to make use of it.

 

Sensors - Air Navigation User Manuals