Aqua Map One time fee, updated regularly like an app. Works on Android and Apple ( Apple you need the cell phone version). Intefaces with AIS and other devices via NEAM .
https://www.aquamap.app/support/17-advanced-tools/35-wifi-connections-nmea
You get both raster and vector maps. If you have cell service wind, tide data in integrated.
I have used it for 4 years on a Samsung tablet and Akron mount. off the dodger This way Deb sees what going on and I can see it as well fro the helm. I still use my Garmin 76c with blue charts for close in navigation from the helm as well as VMG and distance/time functions.
There was a INA discount at one time, came to $60US for life time maps....
$200 for the Samsung tablet, makes it hard to beat I use a the Active Tab version that is designed to be used in wet and industrial environments.