This app seems pretty nice. The last version had issues that made my position jump every few seconds. Its more stable now. My only gripe is that I would like to see more data in less traveled areas. Hopefully this fills in as people use it and upload their sonar data.
Of course, once I get my fishfinder/gps, this will be redundant. Not a big expense for the security of a backup charting solution.
intoski about Boating US&Canada, v9.0.4