qtVlm vs NavBoat

qtVlm is a navigation software for Sailing Boats. The application has a free version with basic features and a full version available through in-app purchase. The free version of qtVlm is a full grib viewer displaying all types of gribs and providing many advanced grib functions. It supports basics charts and some simple instruments. It includes also an Anchor Alarm module, a viewer for shapefiles, for instance those coming from SHOM, and can be configured to receive boat position either from internal GPS or from an external NMEA source connected through tcp, udp or gpsd. The full version adds many functions and features: - Weather routing and route modules, - A complete set of navigation Instruments, - Charts modules for Raster charts, Vector charts (S57, S63 and CM93) and mbtiles, - Support for Harmonic files (tides and currents), - Iridium GO! communication - AIS, - Start line mode, - Access to Great Circle gribs, qtVlm can also be used in Simulation Mode, which allows you to simulate a navigation through our server. This is the best way to learn using qtVlm. Once activated the full version will be available on all your iOS devices.

NavBoat is a navigation and vessel management app built for everyone who takes a boat out to sea. Navigation, maintenance tracking and provisioning - all in one place. CHARTS & NAVIGATION - Nautical chart with depth data and nearby points of interest - Draw routes and add waypoints by tapping the map - Lights, buoys, marinas and harbours - Real-time speed, heading and elapsed time in voyage mode - Save your routes and voyage tracks WEATHER - Marine forecast for your position or any point you pick - Wind, wave and visibility information - Sunrise and sunset times MAINTENANCE - Engine, hull and equipment service records - What was done and when - Document tracking: registration, insurance, seaworthiness, with expiry dates EXPENSES - Fuel, port, maintenance and other costs - Filter by category or currency - Totals and per-currency breakdown PROVISIONING & GALLEY - Pre-departure provisioning lists - Meal planning - Galley inventory VOYAGE LOG - Record your trips and look back on them - With route, duration and notes APP INTERFACE IN 15 LANGUAGES Turkish, English, German, Spanish, French, Italian, Greek, Dutch, Portuguese, Polish, Finnish, Swedish, Norwegian, Danish, Croatian. PRIVACY Your location is processed on your device and is only sent to our servers when you choose to save a voyage track. We do not track your location in the background. You can delete your account and all your data at any time. NavBoat is a planning and leisure aid. It does not replace official nautical charts or required marine equipment; the skipper remains responsible for the safety of navigation.