The NavPlay navigation and charting app for iPad does planning, routing, naviation, logging, safety (such as anchor watch and SMS alerts to a cell phone). You can plan routes by swiping with your finger, get weather via Jeppesen and buy and download C-Map by Jeppesen electronic charts. It integrates with Vesper AIS recievers. NavPlay automatically updates your LogBook. You can review the details of your passage automatically.
The LogBook function automatically records all events that occurred on board, making it easy for you to share any and all of it. LogBook is also a saved record of your trip for future use and analysis. Users can view their on board instruments on NavPlay or interface with the boat's autopilo via NMEA networking.