SeaNav vs SailFreeGPS

SeaNav combines high-resolution marine charts, route planning and real-time navigation in one simple boating app for your iPhone, iPad and Apple Watch. Charts, Autoroute planning, AIS ship tracking, tides and weather in one powerful and affordable navigation app. Built from official hydrographic data with extensive coverage across North America, Europe and Australia. Professional marine navigation features including: Planning • Create and edit routes with auto-routing for creating waypoints • Measure distance & bearing • Import & export GPX routes • Tides, Streams & Weather • Works offline Navigate with Confidence • Real-time GPS navigation • Course Up & North Up modes • ETA, XTE, VMG, SOG & COG • Sailing HUD display • Background navigation • Automatic Waypoint advancing & alerts Live AIS & Safety (Optional IAP) • Real-time AIS ship positions • Collision alarms • AIS position sharing • Internet AIS integration • Free AIS when used with Boat Beacon • MOB and Anchor alarm (IAP) - NMEA Link for Depth, Wind & AutoPilot - Real time local wind feed and Sailing laylines display (IAP) Alongside this SeaNav offers advanced onboard capabilities rarely found in a single app: Apple Watch app SeaNav for Apple Watch is included at no extra cost, giving you route data, key navigation information and quick access controls directly from your wrist. Sophisticated AIS Display and Position sharing The leader in the field with global coverage and clear, information-rich vessel tracking with intelligent filtering and collision prediction tools. CPA and TCPA alerts help you assess risk early and act confidently. Augmented Reality View Overlays navigation, AIS and chart data directly onto the real-world camera view for intuitive situational awareness. Includes night mode support for compatible thermal cameras such as FLIR. SeaNav Autoroute and Autopilot Integration - Just choose where you want to go and SeaNav will create the route for you - Go one step further and let SeaNav pilot the route with compatible autopilot systems from Raymarine, SIMRAD, Lowrance and B&G SeaNav comes with a built-in tutorial mode with free access to all features including charts, AIS, AR & wind The free version includes all navigation and trip planning tools. High resolution vector charts are available by In App Purchase (IAP) including updates for 12 months. Requirements: GPS only required for real time route navigation. Optional Real time AIS, Tides and Weather information require an active internet connection. WiFi-only iPad will need an external GPS receiver for navigation. Please note that continued use of GPS running in the background can dramatically decrease battery life. Subscriptions Our in-app purchases are 1 year subscriptions, which automatically renew at the end of the subscription period unless auto-renew is turned off at least 24-hours before the end of the current period. Payment will be charged to your iTunes Account at confirmation of purchase, and will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the iTunes account holder and auto-renewal may be turned off by going to Account Settings after purchase. 
No cancellation of the current subscription is allowed during active subscription period. NOTICES: This product has been derived in part from material obtained from the UK Hydrographic Office with the permission of the UK Hydrographic Office, Her Majesty’s Stationery Office.” “© British Crown Copyright, [2026]. All rights reserved. The UK Hydrographic Office (UKHO) and its licensors make no warranties or representations, express or implied, with respect to this product. The UKHO and its licensors have not verified the information within this product or quality assured it. Terms of Use: http://seanav.net/termsofuse.php Privacy Policy: http://seanav.net/privacy.php Support: help@pocketmariner.com

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