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Any Ubiquitous Finance App That is on Mac, iOS and Windows?
As I have said before on this site, I personally use Moneydance. They have Mac, Linux and Windows support, and recently added an iOS mobile version that syncs with the desktop. I have only used the Mac "desktop" version, and it seems to function well, but have not tried the other platforms, nor the iOS version. I have no company affiliation, but am a (mostly) happy user.  :-)