I was eyeing the WingX Pro7 app. is this the version you're referring to?
Yes. After a year of ForeFlight, I did an extensive evaluation of WingX and Garmin Pilot before I committed to another year of ForeFlight.
Basically, I liked WingX slightly better as a navigation device and for data access in flight, although some of my gripes with ForeFlight in this area [they tell me] are resolved in the next update. ForeFlight is a much better weather/planning/data reference application, with more basic navigation capabilities. However, after talking with ForeFlight, I do have confidence that they are working to beef up the navigation capabilities, but doing so more methodically to ensure that those features are implemented well and are presented in an intuitive way.
In WingX, I also liked the airspace and identifier overlay, runway extensions, track up capability and the data display all in one place (at the top) of the screen. I didn't like the glacially S-L-O-W map redraw on the iPad 3, the fact that your course disappears and is then redrawn when changing zoom levels (or adding/removing map overlays), the fact that pending TFRs aren't always shown (and aren't differentiated from active ones), the lack of any warnings for terrain/obstacles, the slightly inaccurate SUA depictions, the slightly inaccurate magnetic variation and density altitude calculations, the lower-resolution approach charts (though still functional), the "intelligent" waypoint insertion that sometimes got the sequencing wrong, the lousy victor airways support (it's there, but not well implemented), the lack of SID/STAR support in routes, and I especially didn't like the lack of Internet weather overlay on the map screen. WingX will overlay ADS-B weather on the map screen, but not Internet weather. There is also no option to interface with XM, if that's your preference.
In the end, I decided that the more polished Foreflight with weather that could seamlessly transition from ground to air ( Internet to ADS-B ) was the winner for me. The excellent support from ForeFlight, and the relatively weak support from WingX, sealed the deal for me. I did ask WingX about Internet weather overlay, and the response was that they have no plans to add it at this time. I suspect that WingX does not have a contracted Internet weather provider, as does ForeFlight, and thus do not have access to the raw data required to overlay weather on the moving map.
Garmin Pilot was a pretty good marriage of the two, except for the fact that it was loaded with glaring bugs and data omissions, and I'm not convinced that Garmin wants to turn it into a full-blown competitor with their handheld units.
JKG