Best apps like onNAV SailLink

9+ similar apps compared and reviewed

4.6 avg rating
8 free apps
Updated September 2026

Whether you want more options like onNAV SailLink or a completely different take on the same concept, our curated list of 9+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to onNAV SailLink

Sailing Master M#1

Sailing Master M by Pekka Leppanen

Sailing performance
5.0(1 ratings)
FreeIn-App Purchases
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This app provides comprehensive sailing data and performance optimization on various Apple devices. It displays over 35 sailing measurements from boat instruments, polars tables, and nautical charts, offering detailed wind, route, and map views. Connectivity is established through NMEA 0183 Wi-Fi gateways.

4.7😐(193 ratings)
FreeIn-App Purchases
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This marine navigation app offers comprehensive charting capabilities, allowing users to load various standard chart formats and download NOAA charts. It includes essential navigation tools like waypoints, routes, and an anchor alarm, along with weather overlays and NMEA/AIS integration.

What We Love

  • πŸ‘ Highly reliable navigation app
  • πŸ’‘ Tons of features
  • ✨ Clean and sensical interface
  • πŸš€ Versatile for plotting routes/waypoints
  • πŸ“Š Estimating AIS target crossing range
  • πŸ’» Visualizing vessel data
  • βš™οΈ NMEA data smoothing
  • πŸŒ™ Dark mode option
  • 🚨 Alarm customization
  • πŸ—ΊοΈ Custom satellite charts (.kap files)
  • πŸ†“ Free NOAA charts (US)
  • πŸ“‚ Easily accessible chart files/tracks
  • 🚫 Never crashed
  • πŸ’¬ Responsive developer support
  • 🌟 Professional-grade tools
  • βš“ Chart tool functionality (EBLs, VRMs)
  • 🧭 AIS functionality (course vectors, rate of turn)
  • βœ… Official ENCs display
  • πŸ› οΈ Supports S-63 charts
  • πŸ’― Good for marine pilots
  • 🌐 Works with official maps (Hong Kong)
  • πŸš€ NMEA/AIS features
  • πŸ“Š Data bar on map
  • βœ… Reliable app
  • πŸ”Œ Integrates with Active Captain
  • πŸ”‹ Offline use with Aye Tides
  • πŸ’¨ Fast NOAA chart downloads (US)
  • πŸ’» Planning/plotting on laptop
  • πŸ“ˆ NOAA Raster and ENC charts
  • βš™οΈ Tides integrated nicely
  • πŸ‡­πŸ‡° Works in Hong Kong waters
  • πŸš€ VMG feature (missing)
  • 🌍 Free world charts (CM93)
  • πŸ’‘ Ability to use own charts
  • πŸ’― Best nav software by far
  • βœ… Coded by experienced users
  • πŸš€ Fast chart updater
  • ⭐ First rate app
  • 🌐 Offline functionality (99%)
  • πŸ’¨ Download gribs via SSB
  • πŸ’― Serious navigator app
  • πŸ’° Upgrade worth the price
  • πŸ›°οΈ GPS data from TCP/IP source (request)
  • πŸ”„ NMEA data TCP/IP support (request)
  • πŸ—ΊοΈ Display CM93 CMap charts
  • βœ… Try-before-you-buy capability
  • πŸš€ Excellent software
  • πŸ’― Miles ahead of the fleet
  • 🌍 Sailing around the world
  • πŸ’‘ Comprehensive app
  • πŸ”„ Exporting routes easily
  • ✨ AIS functionality excellent
  • ⭐ Actual size feature (AIS)
  • βœ… Solid feature set
  • πŸš€ AIS repeater from laptop
  • πŸ’° Chart plotters for a tenth the cost
  • πŸš€ Works well now
  • πŸ’― Outstanding bit of kit

Room to Improve

  • 😩 Tedious to plot a course
  • πŸ”§ Complicated chart setup initially
  • πŸ€” Not user friendly
  • πŸ“š Instructions not very helpful
  • ⏳ Time wasted on simple things
  • 🐌 Chart downloader excruciatingly slow
  • πŸ“± App needs to be on screen for downloads
  • ⚠️ Switching away causes download failures
  • πŸ”„ Retrying updates needed
  • πŸ“‰ Lazy software design
  • πŸ‘Ž Poor user experience
  • πŸ€” Chart suppliers issue with cross-device use
  • 🐌 App speed could be improved
  • πŸ˜• Creating routes/waypoints clunky
  • πŸ” Options hard to find
  • πŸ“ˆ Learning curve steep
  • πŸ‡ΊπŸ‡Έ US charts take priority
  • πŸ“‰ CM93 charts no longer supported
  • ❌ No option to load older version
  • πŸ—‘οΈ Useless waste of money (charts)
  • πŸ’Έ Expensive charts
  • πŸ€·β€β™‚οΈ Gave up trying to get it to work
  • ❓ ActiveCaptain feature not working
  • 😭 Screwed by updates
  • πŸ’Έ Waste of money
  • πŸ‘Ž Dropped support for CM93
  • πŸ’° Hundreds of charts stopped working
  • πŸ“‰ Update happened mid-trip
  • ⚠️ Company willing to do this to customers
  • πŸ’Έ Hundreds of dollars worth of charts useless
  • πŸ“‰ Not unique feature set anymore
  • πŸ’° Lost considerable money
  • 🚫 App with no use
  • πŸ“‰ Developer withdraws support
  • 😭 Unhappy about lost money
  • πŸ‘Ž CM93 no longer supported
  • 😩 Wasted money
  • ❓ CM93 NOT SUPPORTED???
  • πŸ“‰ Lost support for CM93
  • πŸ’Έ Expensive app
  • πŸ“‰ Bait and Switch
  • πŸ“‰ Developers stopped supporting CM93
  • πŸ—‘οΈ App now worthless
  • πŸ‘Ž Dropped CM93 support
  • πŸ“‰ Turned useful app into worthless app
  • πŸ’° Full paid version, no refund
  • πŸ˜” Very un happy
  • 🐌 Rendering can be slow
  • 🐌 Full CM93 set is huge
  • πŸ˜• App doesn't allow selection of discreet areas
  • πŸ€” Confusing variations of same app
  • πŸ’° Upgrade asks for more money
  • ❓ Not explaining what you get
  • πŸ‘Ž Download yet another app for upgrade
  • πŸ”„ Need to reinstall charts
  • πŸ› οΈ Needs a lot of work to be user friendly
  • πŸ’₯ Crashes
  • πŸ₯Ά Freezes iPad
  • πŸ’Έ 40 dollars to create waypoints is brutally expensive
  • πŸ’° 10 dollars would have been better
  • πŸ’Έ Cost of charts on top of application
  • ❓ Icons for vessels are basic
  • πŸ˜” It does nothing free
  • ❓ Not intuitive on chart loading
  • πŸ’° Everything is an upgrade
  • πŸ—‘οΈ Useless as a free app
  • ⭐ Less than one star
qtVlm#3

qtVlm by Meltemus SAS

Navigation and weather routing
Worth Considering
πŸ—ΊοΈ Navigation
3.5(8 ratings)
FreeIn-App Purchases
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This navigation software is designed for sailing boats, offering a free version with basic GRIB viewing and an optional full version with advanced weather routing, chart modules, and communication features. It supports various chart formats and NMEA data sources, with a simulation mode for learning.