Right so that particular RealTick is quite a bit more expensive than IQFeed. I didn't even bother contacting sales to get a price on API access, but API access requires their "RealTick Pro" subscription, which is $300/mo (plus exchange fees). Compare this to IQFeed which is $75/mo (plus exchange fees) for a 500 symbol limit -- I didn't make a note of the symbol limit for RealTick, so idk if they didn't publish it or if I just didn't track it.