Best Wärtsilä iSailor alternatives: apps like Wärtsilä iSailor

10+ similar apps compared and reviewed

4.0 avg rating
10 free apps
Updated November 2026

Whether you want more options like Wärtsilä iSailor or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Wärtsilä iSailor

SEAiq#1
4.7😐(194 ratings)
FreeIn-App Purchases
SEAiq screenshot 1
SEAiq screenshot 2

This marine navigation app offers comprehensive charting tools, allowing users to load various chart formats and automatically download NOAA charts for the US. It includes features like waypoints, routes, tracks, weather overlays, and NMEA/AIS integration for enhanced seafaring.

What We Love

  • 👍 Highly reliable navigation app
  • 💡 Tons of features
  • ✨ Clean and sensical interface
  • 🚀 Versatile for plotting routes/waypoints
  • 📊 Estimating AIS target crossing range
  • 💻 Visualizing vessel data
  • ⚙️ NMEA data smoothing
  • 🌙 Dark mode option
  • 🚨 Alarm customization
  • 🗺️ Custom satellite charts (.kap files)
  • 🆓 Free NOAA charts (US)
  • 📂 Easily accessible chart files/tracks
  • 🚫 Never crashed
  • 💬 Responsive developer support
  • 🌟 Professional-grade tools
  • ⚓ Chart tool functionality (EBLs, VRMs)
  • 🧭 AIS functionality (course vectors, rate of turn)
  • ✅ Official ENCs display
  • 🛠️ Supports S-63 charts
  • 💯 Good for marine pilots
  • 🌐 Works with official maps (Hong Kong)
  • 🚀 NMEA/AIS features
  • 📊 Data bar on map
  • ✅ Reliable app
  • 🔌 Integrates with Active Captain
  • 🔋 Offline use with Aye Tides
  • 💨 Fast NOAA chart downloads (US)
  • 💻 Planning/plotting on laptop
  • 📈 NOAA Raster and ENC charts
  • ⚙️ Tides integrated nicely
  • 🇭🇰 Works in Hong Kong waters
  • 🚀 VMG feature (missing)
  • 🌍 Free world charts (CM93)
  • 💡 Ability to use own charts
  • 💯 Best nav software by far
  • ✅ Coded by experienced users
  • 🚀 Fast chart updater
  • ⭐ First rate app
  • 🌐 Offline functionality (99%)
  • 💨 Download gribs via SSB
  • 💯 Serious navigator app
  • 💰 Upgrade worth the price
  • 🛰️ GPS data from TCP/IP source (request)
  • 🔄 NMEA data TCP/IP support (request)
  • 🗺️ Display CM93 CMap charts
  • ✅ Try-before-you-buy capability
  • 🚀 Excellent software
  • 💯 Miles ahead of the fleet
  • 🌍 Sailing around the world
  • 💡 Comprehensive app
  • 🔄 Exporting routes easily
  • ✨ AIS functionality excellent
  • ⭐ Actual size feature (AIS)
  • ✅ Solid feature set
  • 🚀 AIS repeater from laptop
  • 💰 Chart plotters for a tenth the cost
  • 🚀 Works well now
  • 💯 Outstanding bit of kit

Room to Improve

  • 😩 Tedious to plot a course
  • 🔧 Complicated chart setup initially
  • 🤔 Not user friendly
  • 📚 Instructions not very helpful
  • ⏳ Time wasted on simple things
  • 🐌 Chart downloader excruciatingly slow
  • 📱 App needs to be on screen for downloads
  • ⚠️ Switching away causes download failures
  • 🔄 Retrying updates needed
  • 📉 Lazy software design
  • 👎 Poor user experience
  • 🤔 Chart suppliers issue with cross-device use
  • 🐌 App speed could be improved
  • 😕 Creating routes/waypoints clunky
  • 🔍 Options hard to find
  • 📈 Learning curve steep
  • 🇺🇸 US charts take priority
  • 📉 CM93 charts no longer supported
  • ❌ No option to load older version
  • 🗑️ Useless waste of money (charts)
  • 💸 Expensive charts
  • 🤷‍♂️ Gave up trying to get it to work
  • ❓ ActiveCaptain feature not working
  • 😭 Screwed by updates
  • 💸 Waste of money
  • 👎 Dropped support for CM93
  • 💰 Hundreds of charts stopped working
  • 📉 Update happened mid-trip
  • ⚠️ Company willing to do this to customers
  • 💸 Hundreds of dollars worth of charts useless
  • 📉 Not unique feature set anymore
  • 💰 Lost considerable money
  • 🚫 App with no use
  • 📉 Developer withdraws support
  • 😭 Unhappy about lost money
  • 👎 CM93 no longer supported
  • 😩 Wasted money
  • ❓ CM93 NOT SUPPORTED???
  • 📉 Lost support for CM93
  • 💸 Expensive app
  • 📉 Bait and Switch
  • 📉 Developers stopped supporting CM93
  • 🗑️ App now worthless
  • 👎 Dropped CM93 support
  • 📉 Turned useful app into worthless app
  • 💰 Full paid version, no refund
  • 😔 Very un happy
  • 🐌 Rendering can be slow
  • 🐌 Full CM93 set is huge
  • 😕 App doesn't allow selection of discreet areas
  • 🤔 Confusing variations of same app
  • 💰 Upgrade asks for more money
  • ❓ Not explaining what you get
  • 👎 Download yet another app for upgrade
  • 🔄 Need to reinstall charts
  • 🛠️ Needs a lot of work to be user friendly
  • 💥 Crashes
  • 🥶 Freezes iPad
  • 💸 40 dollars to create waypoints is brutally expensive
  • 💰 10 dollars would have been better
  • 💸 Cost of charts on top of application
  • ❓ Icons for vessels are basic
  • 😔 It does nothing free
  • ❓ Not intuitive on chart loading
  • 💰 Everything is an upgrade
  • 🗑️ Useless as a free app
  • ⭐ Less than one star
SEAiq Pilot#2

SEAiq Pilot by Sakhalin

#1 App for Pro Marine Pilots
Strong Contender
🗺️ Navigation
4.9😊(453 ratings)
FreeIn-App Purchases
SEAiq Pilot screenshot 1
SEAiq Pilot screenshot 2

This navigation app provides advanced charting and real-time vessel data for professional marine pilots. It supports various chart formats and external NMEA/AIS devices, offering features like predicted vessel display and docking aids. A free trial is available, with an in-app purchase for permanent access.

What We Love

  • 👍 User-friendly and intuitive
  • 🚀 Fast and efficient performance
  • 🌟 Comprehensive functionalities
  • 💡 Innovative features
  • ✅ Reliable and dependable
  • 💰 Excellent value for money
  • 🛠️ Highly customizable
  • 🤝 Outstanding customer support
  • 📈 Continuous improvement and updates
  • 🗺️ Supports various chart formats (ENCs, S63, Raster)
  • ⚓ Excellent for pilotage and docking
  • 🌐 Works with various hardware configurations
  • 🎯 Accurate and precise navigation
  • 🧰 Loads of useful features
  • 💯 Professional grade navigation

Room to Improve

  • 📉 Increasing cost
  • ❓ Chart loading can be tedious
  • ⚠️ Waypoints can be accidentally deleted
  • 🤔 Difficulty in purchasing subscriptions
  • 🎨 Graphics could be improved
  • ❓ Chartworld integration issues
  • 📱 Performance issues on older devices
SeaNav#3

SeaNav by Pocket Mariner Ltd.

Marine Charts and Navigation
Worth Considering
🗺️ Navigation
4.4😐(251 ratings)
FreeIn-App Purchases
SeaNav screenshot 1
SeaNav screenshot 2
SeaNav screenshot 3
SeaNav screenshot 4
SeaNav screenshot 5
SeaNav screenshot 6

This app provides high-resolution marine charts, route planning, and real-time navigation for boaters. It offers features like AIS ship tracking, tide and weather information, and offline chart access. Advanced capabilities include augmented reality views and autopilot integration.

What We Love

  • 👍 Easy to use and great price
  • 👍 Much easier to use than competitors
  • 👍 UKHO Charts at a reasonable price
  • 👍 Intuitive interface, clear and uncluttered
  • 👍 Supports NMEA data integration
  • 👍 Useful for tracking and marking spots
  • 👍 Great for cruising and watching ship/current/winds
  • 👍 Reliable and functional
  • 👍 Excellent value for money
  • 👍 Intuitive and accurate
  • 👍 Great for novice boat renters
  • 👍 Good app for sailing
  • 👍 Vector maps are amazing, detailed, easy to read
  • 👍 Great in-route tracking and tracing
  • 👍 Fabulous for nighttime navigation
  • 👍 Excellent nav tool
  • 👍 Well-priced in-app purchases
  • 👍 Great help
  • 👍 Top app for mariners
  • 👍 Outstanding support
  • 👍 Works great on iPad
  • 👍 Fantastic
  • 👍 First class app with first class support
  • 👍 Great app with accurate Canadian data
  • 👍 Excellent program
  • 👍 Best product for boats
  • 👍 Detailed charts and augmented reality

Room to Improve

  • 🐛 Frozen/locked app
  • 💰 Neil and dime for everything
  • ❌ Not picking up vessels or ship traffic
  • ❌ Charts not good, weather not working
  • ❌ Difficult to download and update charts
  • ❌ Not an all-inclusive price
  • ❌ NOAA charts are free, paying is a rip-off
  • ❌ Charts no longer show safe anchorage
  • ❌ Not worth the money, expensive subscriptions
  • ❌ Cannot zoom in enough to see channels
  • ❌ Too slow and low resolution
  • 🐛 Confused and buggy, buttons hidden
  • 🐛 Crashes when pressing boat button
  • ❌ Very limited demo, ala carte by subscription
  • ❌ Bad charts for Denmark, difficult to distinguish land/water
  • 🐛 Sailing mode crash
  • ❌ Rubbish, waste of money
  • ❌ Not useable for safe yachting, incorrect chart info
  • ❌ Charts not detailed, low resolution maps
  • 🐛 App does not open
  • 🐛 Crashes after crashes
  • ❌ Free version useless, still figuring out depth data
  • ❌ Misleading marketing, charts not usable across apps
  • ❌ French charts missing information (buoys, wind farms)

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4
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Seapilot
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