Best Marine Route Planner Apps in 2026 (Free and Paid)

A marine route planner takes the guesswork out of getting from one harbor to the next. Instead of eyeballing a paper chart, you drop a start and a destination, and the app builds a route that respects depth, hazards, and often the weather and tides. This guide covers the best marine route planner apps in 2026, both free and paid, what each one is good at, and how to pick the right tool for the kind of boating you do.

One quick note up front so the rest of this is useful rather than salesy: Marine OS is marina management software, not a chartplotter, so we do not plan routes. We build the free tools and content that help boaters and marinas, including a free AIS vessel finder for seeing real vessel positions on a live map. The route planners below are the real apps boaters actually use, described plainly.

#What a marine route planner does

At its simplest, a route planner lets you set waypoints and connects them into a route with a total distance and an estimated time based on your speed. The better ones go further and check the route against chart data so it does not run you over a shoal or through a restricted area.

• Auto-routing: you give it a start and end, it proposes a safe course around hazards.
• Charts and depth: nautical charts with soundings, so the route stays in water you can actually use.
• Weather and tides: wind, waves, and tidal data folded into the plan, which matters most for longer passages.
• Waypoints and tracks: save routes, export them, and follow your own track on the return.
• Offline access: downloaded charts so the app still works when you lose signal offshore.

#The best marine route planner apps in 2026

There is no single best app for everyone. The right choice depends on your cruising area, your boat, and how much you want to pay. Here are the ones worth knowing, described neutrally.

#Savvy Navvy

Often described as the boating equivalent of a car sat-nav, Savvy Navvy automatically builds a course to steer that folds in tide, weather, and chart data, then lets you preview each leg before you leave. Downloadable chart packs and weather keep it working off-grid. It is a popular pick for sailors who want a clean, guided plan rather than a blank chart.

#Navionics

Navionics is one of the most widely used chart apps on the water, with detailed charts, a route-planning tool, community depth edits, and dock-to-dock auto-routing. Many boaters use it on a phone or tablet and sync routes to a compatible chartplotter at the helm.

#Aqua Map

Aqua Map is a favorite on the US Intracoastal Waterway and inland routes. Its route planner combines automatic and manual modes, flags hazards, and lets you use community tracks as guides, which is handy where official charts lag reality.

#C-MAP

The C-MAP app offers premium charts with auto-routing, points of interest, bathymetry, and custom depth shading, available on iOS and Android. It suits boaters who want rich chart detail and a path to matching plotter hardware.

#OpenCPN (free, open source)

OpenCPN is free, open-source chart plotter software used by thousands of cruisers as their main navigation tool, especially on a laptop at the nav station. It supports official electronic charts, route building, and a wide plugin ecosystem. There is a learning curve, but the price is unbeatable and you own your setup.

#OpenSeaMap (free)

OpenSeaMap is a free, community-built nautical chart with a trip-planning tool in the browser. It will not replace a full chartplotter for offshore work, but it is a genuinely useful free option for sketching out a route and checking marks and harbors.

#FastSeas (weather routing)

For sailors planning longer passages, FastSeas focuses on weather routing: it calculates the fastest or most comfortable route from A to B using current forecasts and ocean currents. It is less about coastal hopping and more about open-water passage planning where the weather decides the route.

#Free vs paid route planners

Free tools like OpenCPN and OpenSeaMap give you real capability at zero cost, but they ask more of you to set up and maintain. Paid apps cost a yearly subscription and reward you with polished auto-routing, current charts, integrated weather, and support. The honest answer is that most serious boaters end up paying for one app because the convenience and the up-to-date charts are worth it, while keeping a free option as a backup.

#How to choose a route planner

1. 1Match it to your waters. Coastal and inland boaters value chart detail and hazard flags; offshore sailors value weather routing.
2. 2Check chart coverage for your region before you commit, since quality varies by area.
3. 3Decide on free vs paid. If you want it to just work, pay; if you like to tinker and own your setup, OpenCPN is hard to beat.
4. 4Confirm offline support so the app keeps working when you lose signal.
5. 5Think about your helm. If you have a chartplotter, pick an app that syncs routes to it.

#Route planning is not the same as AIS vessel tracking

A route planner shows where you intend to go. AIS vessel tracking shows where boats actually are right now, by reading the position signals vessels broadcast. They answer different questions, and most boaters use both: a route planner to set the course, and a vessel tracker to see traffic and to let friends or a marina follow an arrival.

If you want to see live vessel positions, try our free AIS vessel finder. For the bigger picture of how passage planning works step by step, our marine route planner and passage planning guide walks through it, and AIS vessel tracking for marinas explains the tracking side in depth.

#Planning a route that ends at a marina

Almost every passage ends at a dock. Once you have planned the route, the next question is where you will tie up, and whether there is a slip available. That is the moment marinas and boaters meet. Marinas that take online bookings make the last leg of your plan easy, which is the whole idea behind online slip reservations and the slip and reservation tools Marine OS is building for operators.

#Frequently asked questions

Plan the route with the app that fits your waters, then use a free AIS vessel finder to watch traffic and arrivals. Get both right and the day on the water is the easy part.