Hello I took my phone out windsurfing today and it said my max speed was 62.79km/h. I'd love it to be true but it does seem a bit fast even if some gusts were probably not far short. Are there any free of low cost apps, for phone or Windoze, that help you analyse the collected data in more detail. A graph of speed against time would be good. Or anything. Currently I just export to Google Maps and get simple averages and maximums. Thanks.