I rolled my own (web-based), and I thought about releasing it as a service people could use, but the inability for me to determine EQD on a per-segment basis makes it so I continuously have to go back and edit EQD after it posts. I don't mind doing that for my own tracker, but it isn't something I'd push onto a user. I've spent many hours trying to figure out how the EQD breakdown per segment works, and AA says it's "based on Tariffs in effect for the ticket," but thus far, I can't find any logic behind it in any published material about a fare.

It does a really good job of keeping track of EQM, EQD, EQS, RDM, and even has a spot for me to enter credit card spend and customer service gestures, redemptions, etc. It automatically determines EQM/EQD from AA credit cards too. It can automatically calculate sticker earnings, and it even does its own great circle calculations for mileage (or uses proven AA-specific distances for routes I've already traveled in case they're different).

Some day I'll crack the code and let some people try it out.

As an aside, if anyone can shed any light whatsoever on the breakdown of EQD on a per-segment basis, I'm all ears.