They do.
It’s a phone game port, hence the price (they kept the parity between platforms). It has got pacing issue, and I think it is more of an elaborate version of the MS BASIC Gorilla, or even the naval battle paper game, but it’s pretty nifty.
As for Cold Waters, we got a thread.
Rule the Waves is a very cool naval-themed strategy game, although the aspects that appeal to me the most in it are those that remind me of what I loved about designing ships in EVE Online, so you may have to go elsewhere for historical flavor… Or maybe EVE Online, however its current state, qualifies as well, then?
For tablets, there is Silent Depth, WW2 US subsim, but I thought this one had a lot of issues when it was released. I don’t know what its current state is.
Edit: I am so drunk, Crash Dive is Uboat, thus not for you =)