Headsail Chooser will tell you the most likely sails that you will be using today, with specifics for common one design boats and a general recommendation for performance cruisers. Simply tell Headsail Chooser what kind of boat you have and whether you are choosing an upwind sail (Jib or Jenoa) or a Downwindsail (Spinnaker). Enable Location Service when you enable the app.
“Alexa, Ask Headsail Chooser, what sail should I use while sailing downwind ... ”