I'm kinda done with expertflyer now. Very shoddy and not reliable, IMO any longer.
I mainly use it for:
Schedule change alerts (including when the flight #/city pairs change--especially with AA which never/rarely seems to trigger an expertflyer alert)
and
Aircraft change alerts (UA seems to also have problems with expertflyer not triggering)

Very rarely do I use seat alerts.
And can never really use it for award alerts (but supposedly that's not their fault, it's the whole UA/etc. alliance thing)

I see fligthy or something for iOS, but it seems to only (I have NOT tried it) do alerts/etc. like 3 days in advance type of thing. (If it can do 330 days in advance or whenever I book, then I'll check it out).