SailFreeGPS vs Drift

Hello, * SailFreeGPS displays current location, course (COG), speed (SOG), max speed, Trip distance, speed average and magnetic compass. * SailFreeGPS displays COG and SOG history (6h) to help you to see trim effect on your sails. * SailFreeGPS filters GPS information for more accuracy (average of an amount of last measures you can set). * SailFreeGPS can share your position, COG, SOG to your friends. * SailFreeGPS helps you during Man OverBoard maneuver (MOB). It stores the location and lead you to it. * SailFreeGPS displays your track on google map (48h). * SailFreeGPS helps you during Regatta with its countdown timer and its departure line * You can store up to 8 waypoints and activate a GOTO function with ETA (Estimated Time to Arrival computation) * You can save/load track to/from GPX/KML file * You can calculate distance and heading * You can use it on every boat, motor or sail boat. * You can now activate an anchor alarm or a course alarm. I am an amateur sailor who has decided to create this app after a Transatlantic cruise. I add periodically functionalities to this app when I have some spare time. Please send me an email for any question or problem : contact@sailfreegps.com Encourage me to continue by subscribing to premium version. List of features of Premium Version Premium version DOES NOT CONTAIN ADS. GPS INFO Tab: * Doucle click on SPEED will reset trip, max and ags speed * Long click on COURSE to display compass * Double click on coordinates to display/hide position Graph Tab: * Double click COG graph to switch to full screen mode MOB Tab: * Displays of relative bearing of the MOB * Displays of tack angles * Double click graph to switch to full screen mode Waypoint Tab: * Up to 200 Waypoints * Displays of relative bearing of Waypoint * Displays of tack angles * Double click graph to switch to full screen mode Map Tab: * Displays of SOG and COG (speed & course) * Your track segments are displayed according to your speed Anchor alarm: * Anchor area can be a polygon and you can adjust its shape Regatta Tab: * "Gun Button" allows to round seconds to nearest minute Ex: 4:03 => 4:00 or 3:58 => 4:00 * Enter exact départure time up to the second * Displays of time to kill/save continuing the same way (speed and course) * Displays of ideal speed to cross the line at 0:00 on the same course!!! Settings Tab: * Displays reverse color (white on black back) * You can select Hybrid map * Select on which duration is calculated the speed scale of your track: last 5min, 15 min or all the track * Select your tack angle value. It will be displayed on MOB and WAYPOINT tabs Exit: * Ask to save the track before Exit

Know the current and trends. Win more races. Drift measures real water current at your exact GPS location — direction in degrees true and speed in knots — in 30 seconds. Not a tide forecast. Not a modeled estimate. The actual current at your boat, right now. Every racing sailor knows that current is one of the biggest factors on the racecourse. The boat that knows what the current is and what it's doing wins the layline call, starts on the favored end, and rounds the mark first. Until now, getting that number meant guessing from a chart, estimating from a buoy, or just guessing and hoping that you got it. Drift changes that. — HOW Drift WORKS — Drop in any semi-submersible floating object into the water. Tap Mark Start. Watch the current carry it. Move to your marker and tap Mark End. Drift instantly calculates everything you need — direction in degrees true, speed in knots, so you're never left guessing again When you start measuring the current drift displays the time with a progress bar to let you know when you've been timing long enough — WHAT MAKES DRIFT DIFFERENT — All the other apps that give current are estimated based off charts and forecasts, but those can be wildly inaccurate, the current can vary even on a small dinghy race course, and even more when you're talking off shore racing Drift measures what is actually happening at your exact coordinates. The local bathymetry. Today's exact tidal state. Wind-driven current. Eddy effects near the shore. The number no forecast can give you. — FEATURES — - Set and drift in degrees true and knots - 16-point flow direction (NNE, SSW, etc.) - Smart GPS for stable, accurate readings - Live GPS reception monitoring - Session trend tracking - Automatic slack tide detection - High-contrast interface designed for direct sunlight - Large touch targets for use with gloves - Works 100% offline — no cell signal, no WiFi, no data plan - Works anywhere in the world - No account or signup required - One-time purchase — no subscription, ever — BUILT FOR RACING — Every detail in Drift exists because a racing sailor needs it, — ONE-TIME PURCHASE — $4.99. Yours forever. Unlimited readings. All future updates. No subscription, no ads, no hidden anything. Buy it once, use it for every race, every season. Drift is developed by a sailor, for sailors and coaches. It's the racing tool that you've been missing.