The blurb says "can... provide data from around the world". However, after purchase, it said that every one of the major city names I entered in Japan were "not near a known tide station" - including the capital, Tokyo. This is false. (I know this because I then bought a Japanese-language app - and it knows tidal results even for small towns.) The blurb should state exactly which countries are covered. I wanna refund.
sPleeNomega about Wolfram Tides Calculator, v1.0.0