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  WindTalker
          by Kim Giwoo
        
      WindTalker
            by Kim Giwoo
          
        Feel the Wind: The Ultimate Sailing CompanionThis app tells the True wind and Apparent wind direction.If you connect the digital compass sensor, you can see your sail in reality.and with the true wind and apparent wind, this app calibrate the optimal sail angle.After sailing this app records the distance, route, and calories and max speed for reflection.