iFly GPS Forum

Yep. If you bought a package that included it, there is a recommendation to consider an externall. My internal seems to work ok but experience varies.

I suspect they might be the Stratux SDR's.  Anyway, the Stratux will work with almost any EFB.  AHRS works with all except ForeFlight.  I would replace the internal GPS with this one if it doesn't want to connect:

https://www.amazon.com/Stratux-Vk-162...eywords=stratux

iFly GPS will work with all the functions of the Stratux.  iFly does not have synthetic vision yet, but the Stratux AHRS will power the iFly artificial horizon.  So, if you were to blunder into clouds, it would be there as a backup to your airplane's artificial horizon.  I think AP might be working on synthetic vision, but not sure.  They are pretty proactive on these things.  IFly also uses the barometric pressure sensor in the Stratux to give us an indicated altitude instead of just GPS altitude.  This indicated altitude should be pretty close to your airplane's altimeter.

The internal GPS in the Stratux is problematic.  I have built and sold a number of these but was never successful in getting the internal GPS to work very well.  That's why I use the external GPS and place it on the glare shield next to the Stratux.  It's not an issue.  Also, if you don't want to plug into your 12v source, you can velcro a battery to the bottom of your Stratux.  I use this one and it last over 4 hours.  https://www.amazon.com/gp/product/B00...=UTF8&psc=1 

Advantage?  A Stratus that does everything a Stratux does is $899.  You can build a Stratux for around $150 or buy one already assembled for not a lot more.  The ones I build and sell on Ebay cost me around $170 because I include a battery with mine.