Transas iSailor - Tides and Currents Subscription Tutorial

A tutorial on how to use the tidal functionality of Transas iSailor application iSailor for iPad/iPhone: https://itunes.apple.com/en/app/transas-isailor-marine-navigation/id398456162?mt=8 iSailor for Android: https://play.google.com/store/apps/details?id=com.transas.uninav.plotter&hl=en iSailor on Facebook: https://www.facebook.com/Transas.iSailor?ref=hl