Used On Mississippi and St. Croix Rivers – Marine Navigation - Lake Depth Maps - USA - Offline Gps Nautical Charts for Fishing, Sailing and Boating Review

Thus far I've used this app primarily for navigation on the Mississippi and St. Croix rivers, with good success. I've used the app on my iPad Air 2 and used a Garmin Glo for positioning information. The app performed well and the couple of times when the app froze it was due most likely to the Garmin Glo (since other navigation apps I have on this platform experienced the same freeze problems in conjunction with the Garmin Glo). Like everything else in the world there is always room for improvement, and for the rivers the two suggestions I'd make to the developer are: improve wing dam symbology on the charts this plotter uses, and secondly, add bridge clearance, radio frequencies and phone numbers as well as similar dimension and contact information for locks. I've used this app to successfully deliver a $1M yacht and thus it is quite a good app. REMINDER TO RECREATIONAL MARINERS: NEVER rely on only one navigation method even on rivers. Have a paper chart or a second GPS-based system independent of the primary method. You should ALWAYS know your current position especially if a sudden emergency arises.
Review by E. Lile on Marine Navigation - Lake Depth Maps - USA - Offline Gps Nautical Charts for Fishing, Sailing and Boating.