Ahrs and beta software altitude

Please provide the following information:

Hardware:
[ x ] FlightBox Kit
[  ] FlightBox Assembled (FB1X)
[  ] Generic Stratux

FlightBox / Stratux version: ("v1.0r1")

FlightBox / Stratux build: (beats me. Pi2 with ahrs and beta software)

Radio Configuration:
[x  ] Dual Band
[  ] Single Band - US / CA - 978 MHz UAT
[  ] Single Band - International - 1090-ES

GPS Configuration:
[  ] None - Using mobile device's GPS
[  ] Open Flight Solutions Remote GPS
[  ] Internal GPS Module (VK-172)
[x  ] Other: ahrs on board gps

USB Power Source:
[ x ] USB Battery: (rnav power 6 port using 2.5 amp)
[  ] Cigarette Lighter Adapter: (Make / Model Here)

USB Cable:
[ x ] 3' heavy gauge cable included with FlightBox
[  ] Other: (Make / Model / Description Here)

EFB Application name and version: foreflight and flight plan go

Please include a detailed description of your issue or question: relative altitudes of other aircraft appear to be relative to the baro preassure altitude and not geodetic altitude. With a pressurized cockpit this is a significant problem.

Which EFB application are you using? Some allow you to select the altitude source. We will add a switch to the next iteration of the software for users who have pressurized aircraft.

Thanks, a switch for altitude should work fine. I saw your request for help and am interested but unfortunately my work keeps me on the road for 2 to 3 weeks at a time with 1 week at home. I also have several software projects in progress at work.