David Berry from Practical Boat Owner shows how to make an AIS receiver with an Android Phone or Tablet and a RTL-SDR.com dongle. He use AIS Share to stream data to Boat Beacon a very popular chart navigation app. In his article he provides information about the technical background of AIS( automatic information system) and he is describing how he build a cheap AIS Receiver with a RTL-SDR Dongle and my App. The full article was issued in the February 2019 edition. https://www.pbo.co.uk/publication/pbo/february-2019
A similar tutorial on setting up AIS Share and Boat Beacon can be found here, or here https://ebctech.eu/is-app-xy-compatible-with-ais-share/
Or just watch my YouTube video about AIS SHARE and BoatBeacon