Mr. Tides 3 has several changes over the previous version. It uses the Sparkle update engine for seamless updating and the latest XTIDE database engine for access to the harmonics data files. The views are simpler, the database uses Core Data for speed and robustness, and Core Animation is used in the Day view. The maps are now satellite images that can be zoomed for easy station location.

An installer is no longer required, just un-zip the file and drag the application to your hard disk.

You can still export tides and astronomical information to iCal, and now station locations can be exported to MacENC and GPSNavX via an XML file. Open stations are now documents that can be saved to any location.