Poor design and limited information unless you pay up.

You need to sign up for any of the useful maps. The free version is just a tide chart and there are better tide charts. 30 dollar subscription is quarterly. (!) even if I was a commercial operator it would have to be very very good for me to pay that. Dont forget to change your email to a junk address before deleting to they can’t sell it.

Not willing to pay to see if it’s any good.