During the free trial period:

Using unauthorized copies means:

| Alternative | Best For | Offline? | |-------------|----------|-----------| | (USA) | Official government vector charts | Yes (via apps like Aqua Map or C-MAP free tier) | | OpenSeaMap | Crowdsourced global basic charts | Yes (via SAS.Planet or OpenCPN ) | | Navionics Web Viewer | Planning at home on PC | No (online only) |

Only start your 15-day trial right before a big trip to ensure you have the best data when you need it most.

An HD bathymetry map featuring extraordinary bottom detail, perfect for locating fishing structures.