1. This is just a map.Its not too bad, just too bad it only shows conturs of half the lakes in wisconsinDoesn't show Castle Rock or Petenwell lakes.Does not provide accurate lake map depths for most lakes and no data for many other lakes.
2. Has decent topo map but that's not what's being sold by the app name.
3. Don't use wanted lake maps.
4. Waste ôf time.