Hello,IamanamateursailorwhohasdecidedtocreatethisappafteraTransatlanticcruise.IaddperiodicallyfunctionalitiestothisappwhenIhavesomesparetime.✓SailFreeGPSdisplayscurrentlocation,course(COG),speed(SOG),maxspeed,Tripdistance,speedaverageandmagneticcompass.✓SailFreeGPSdisplaysCOGandSOGhistory(6h)tohelpyoutoseetrimeffectonyoursails.✓SailFreeGPSfiltersGPSinformationformoreaccuracy(averageofanamountoflastmeasuresyoucanset).✓SailFreeGPScanshareyourposition,COG,SOGtoyourfriends.✓SailFreeGPShelpsyouduringManOverBoardmaneuver(MOB).Itstoresthelocationandleadyoutoit.✓SailFreeGPSdisplaysyourtrackongooglemap(24h).✓SailFreeGPShelpsyouduringRegattawithitscountdowntimeranditsdepartureline✓Youcanstoreupto8waypointsandactivateaGOTOfunctionwithETA(EstimatedTimetoArrivalcomputation)✓Youcansave/loadtrackto/fromGPX/KMLfile✓Youcancalculatedistanceandheading✓Youcanuseitoneveryboat,motororsailboat.✓Youcannowactivateananchoralarmoracoursealarm.Compassisaverytrickysensor,sometimenotaccurateorsometimejustnotcalibrated.Inthiscase,justconsiderhttps://support.google.com/maps/answer/2839911?co=GENIE.Platform=AndroidPleasesendmeanemailforanyquestionorproblem:sailfreegps@gmail.comEncouragemetocontinuebysubscribingtopremiumversion.ListoffeaturesofPremiumVersionPremiumversionDOESNOTCONTAINADS.GPSINFOTab:✓DoucleclickonSPEEDwillresettrip,maxandagsspeed✓LongclickonCOURSEtodisplaycompass✓Doubleclickoncoordinatestodisplay/hidepositionGraphTab:✓DoubleclickCOGgraphtoswitchtofullscreenmodeMOBTab:✓DisplaysofrelativebearingoftheMOB✓Displaysoftackangles✓DoubleclickgraphtoswitchtofullscreenmodeWaypointTab:✓Upto100Waypoints✓DisplaysofrelativebearingofWaypoint✓Displaysoftackangles✓DoubleclickgraphtoswitchtofullscreenmodeMapTab:✓DisplaysofSOGandCOG(speed&course)✓YourtracksegmentsaredisplayedaccordingtoyourspeedAnchoralarm:✓AnchorareacanbeapolygonandyoucanadjustitsshapeRegattaTab:✓"GunButton"allowstoroundsecondstonearestminuteEx:4:03=>4:00or3:58=>4:00✓Enterexactdéparturetimeuptothesecond✓Displaysoftimetokill/savecontinuingthesameway(speedandcourse)✓Displaysofidealspeedtocrossthelineat0:00onthesamecourse!!!SettingsTab:✓Displaysreversecolor(whiteonblackback)✓YoucanselectHybridmap✓Selectonwhichdurationiscalculatedthespeedscaleofyourtrack:last5min,15minorallthetrack✓Selectyourtackanglevalue.ItwillbedisplayedonMOBandWAYPOINTtabsExit:✓AsktosavethetrackbeforeExit