Lowrance released its latest mapping program Insight Genesis which allows you the user to create your own maps from sonar logs. All you have to do is record your sonar data while you are on the water. Then remove your SD card when you get home and upload the logs with Lowrance’s handy desktop utility. Within a few minutes you’ll receive an email with a link to your custom map.
Here is a sample of a short sonar log from a couple of years ago that I uploaded yesterday.
Here is the Navionics chart for the same area to show the difference.
Lowrance allows you to view the maps online for free. A onetime download is $19.95 to use with a HDS Gen2 Touch unit. The Standard 1 year subscription is $99.95 and that allows maps to be used on 2 HDS Gen2 Touch units and a 4 hour scanning time. This also allows you to merge maps from different trips for even greater detail. The Premium subscription is $299.95/year and offers use on 4 HDS Gen2 Touch and bottom hardness, vegetation, weather tools, and other trending features.
Here is the link to get started on this https://insightstore.lowrance.com/insightgenesis