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Best AvNav Alternatives ranked by AI · updated Aug 2026
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AvNav is a free, open-source navigation system designed for Raspberry Pi, tablets, and web browsers. It focuses on offline charts, route planning, instrument data, AIS, and lightweight onboard navigation.
Top 6 AvNav alternatives
2
OpenPlotter
Sailoog
OpenPlotter is a free, open-source marine navigation and boat-integration platform for Raspberry Pi computers. It combines chartplotting, Signal K and NMEA data...
Pros
- Integrates navigation, sensors, Signal K, NMEA, and vessel hardware in one Raspberry Pi platform
- Open-source and highly configurable compared with proprietary marine electronics
- Supports low-cost DIY installations and a broad range of community plugins
Cons
- Requires more setup and troubleshooting than turnkey chartplotters
- Raspberry Pi hardware can be less rugged and reliable than dedicated marine equipment
- Interface consistency is lower than polished commercial navigation apps
Free; optional charts and hardware cost extra
3
iNavX is a popular marine navigation app that offers a wide range of features for boaters including weather information and AIS integration.
Pros
- Weather information
- AIS integration
Cons
- Paid app
- Learning curve for new users
4
OpenCPN is a free software for marine navigation with a wide range of features and plugins.
Pros
- Free to use
- Active community support
Cons
- Interface may not be as polished as commercial software
5
Navionics Boating
Garmin
Navionics Boating is a mobile chartplotter app for recreational boaters using iOS and Android devices. It provides detailed marine charts, route planning,...
Pros
- Much easier to install and use than a Raspberry Pi-based OpenPlotter system
- Extensive global chart coverage with regularly updated commercial data
- Strong mobile routing, tides, weather, and community features
Cons
- Requires paid chart subscriptions for core regional chart coverage
- Less configurable for onboard sensors and automation than OpenPlotter
- Mobile devices are less suitable for permanent helm installations
Freemium; chart subscriptions vary by region
6
qtVlm
qtVlm
qtVlm is a marine navigation and sailing-weather application for route planning, weather routing, AIS, and virtual sailing. It serves cruisers and performance...
Pros
- Stronger weather routing and GRIB analysis than OpenPlotter
- Supports AIS, routing, tracks, and instrument connections
- Available across major desktop and mobile platforms
Cons
- Less focused on permanent boat hardware integration than OpenPlotter
- Interface and workflow are more specialized for sailing and weather routing
- Chart availability and licensing vary by platform
Free basic version; paid features vary by platform
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