There must be better AIS alarm apps
For one this does not appear to stay active while in the background on iPadOS. Does not appear as a an app in Background App Refresh settings. Then it does not recognize when a target has passed and continues to alarm if I bring it into the foreground. As much as I don’t care for Navionics AIS it does seem to provide reasonable and appropriate collision alerts. Considering they are both Garmin owned now you would think they could benefit from each other. However this seems to be a classic problem as companies are swept up.