I just noticed that Popular Direct Bank has 2.55 %APY with $5,000 minimum deposit on new accounts. It is FDIC insured. I assume that just like Wealthfront, this introductory rate won't last long. For now, I think I will just keep my money with CIT bank, but it may be of interest to others. I will probably regret it if the low APY at Popular Direct starts going on for a while.
There is a $4 a month fee if your balance drops below $500, and the usual excessive withdrawal fee of $5 applies, if you make more than six withdrawals a month. There is also a $25 fee if you close your account within 180 days, which could be important.
Something that is unusual is that you can only fund from just one external account for the first 70 days. It says you can still make withdrawals during that period though.