Comparison

OpenSeaMap vs Navily

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OpenSeaMap

This app provides a free, worldwide nautical chart with detailed sea information, including lights, weather data, and harbor details. It offers chartplotting, waypoint management, and offline map caching for navigation. Users can mark locations, enter coordinates, and adjust chart zoom for optimal viewing.

Highlights
  • Free worldwide sea chart
  • Chartplotting with tracking
  • Waypoint creation and export
  • Offline map caching
  • Mark and search locations
  • Adjustable chart zoom
Features
Read full description

OpenSeaMap is a worldwide Opensource-project for creating a free nautical chart. Founded in 2009 the project gained a lot of attention lately adding more and more nautical information for free. Not even lights and other nautical infos are provided, but also more and more info layers like weather data, information about harbours and so on. As an add on to the OpenStreetMap this provides all missing info for nautical activities. OpenSeaMap is part of OpenStreetMap and uses the same database. FEATURES: - Free worldwide sea chart (incl. HD chart graphics) - Search for geolocations worldwide - Chartplotting with continuous tracking - Waypoints can easily be created, edited, deleted & exported - Mark locations in the chart - Zoom chart optically to fit your preferred reading size - Enter coordinates directly to be displayed in the chart - Offline caching of up to 1 million map tiles - Cleanup of chart cache data at any time To ensure future development and support of the OpenSeaMap app we encourage you to buy the In-App-Product "PRO". This will help keeping new updates and features coming. DISCLAIMER: OpenSeaMap is part of the OpenStreetMap and uses the same database. As an experienced navigator you should NEVER rely your descisions on one source of information alone. Please keep in mind that the OpenSeaMap can not replace official sea charts on bord of your boat. Please use the OpenSeaMap app only in conjunction with official sea charts and conforming to national and international regulations. Please recognize that no depth information is provided by this product. IMPORTANT: The continued use of the GPS can significantly decrease the battery level.

About

Navily

This app serves as a comprehensive mobile cruising guide for boaters. It offers a vast database of marinas and anchorages, user-generated reviews and photos, and seamless berth booking across Europe. Connect with other users and marinas through in-app chat and receive real-time warnings.

Highlights
  • 35,000+ marinas and anchorages
  • 350,000+ community photos and comments
  • Easy berth booking in 700+ European marinas
  • In-app chat with users and marinas
  • Real-time anchorage warnings
  • Emergency SOS feature
Features
Read full description

With over 1.2 million boaters worldwide, Navily is the all-in-one boating and sailing app to discover safe anchorages, book marinas with ease, and cruise with confidence. Whether you're planning a day trip, a sailing holiday, a coastal cruise, or an offshore adventure, Navily gives you everything you need in one place. Trusted by sailors, cruisers, and recreational boaters around the world, Navily helps you plan routes, discover the best marinas and anchorages, and make every journey easier. Explore more than 35,000 marinas and anchorages backed by 500,000+ trusted reviews and photos from the Navily community and our marina partners. Why choose Navily? - A growing community with over 1.2 million boaters worldwide - 35,000+ marinas and anchorages - 500,000+ reviews and photos - 700+ bookable marinas - Smart route planning and distance calculations - Navily Protection Scores to find the best anchorages - Live chat with nearby boaters - Real-time anchorage alerts - Emergency SOS feature- ask the community for help! Plan smarter boating routes. Spend less time searching and more time sailing. Compare nearby marinas and anchorages, calculate distances, filter results to match your preferences, discover the best locations to anchor with Navily Weather Protection Scores, and build routes with automatic itinerary planning. Whether you're cruising the Mediterranean or exploring the Caribbean, Navily helps you make better decisions before you leave the dock Sail with confidence. - Access over 500,000 community reviews and photos to find the perfect stop, including: - Depth and seabed information - Wind and swell protection - Marina facilities and services - Local tips from experienced boaters - Real photos from fellow sailors - Every review is automatically translated, allowing you to benefit from the knowledge of our international boating community. - Stay connected through community chat, receive real-time anchorage alerts, and access essential services both ashore and at sea. When you're off the grid, Offline Mode keeps important information available whenever you need it. Unlock even more with Navily Premium. Upgrade to Navily Premium and enjoy: - View a 72-hour anchorage protection score before you drop anchor - Filters the map to your preferences and boat requirements - AI-powered summaries of all community comments - Offline-mode, no internet needed. Navily is also available in French, Spanish, German and Italian. Want to help us improve Navily? Find us on Facebook, Twitter or Instagram and share your stories with us, we are passionate about what we do! Facebook: https://www.facebook.com/navilyApp Twitter: https://twitter.com/navilyapp Instagram: http://instagram.com/navilyapp Blog : http://blog.navily.com/ Website : https://www.navily.com/ Privacy policy : https://www.navily.com/privacy Terms of Use : https://www.navily.com/cgu

Screenshots

OpenSeaMap4 screens
Navily4 screens

Verdict

The call

The clearest difference is review sentiment: Navily at 94% against OpenSeaMap's 38%. Navily also leads on rating (4.8 vs 1.0) and ratings volume (832 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OpenSeaMap sells 1 one-off in-app purchase and Navily sells 4 in-app purchases, starting at $9.49 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Navily holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Navily has 832 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 38% of OpenSeaMap's written reviews are positive against 94% of Navily's.

UpkeepUpdate frequency

OpenSeaMap ships an update every 2 months, Navily fortnightly. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
OpenSeaMap versus Navily: the parameters behind the verdict, then further details
ParameterOpenSeaMapNavily
PriceFreeFree
Rating1.0 (1 ratings)4.8 (832 ratings) — better
Positive reviews38.3% of reviews93.6% of reviews — better
Number of ratings1832 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.616.0 — better
Further details — not scored
Size13 MB242 MB
Age rating4+4+
Developerappdoctors UGThe Navigation Family

Customer experience

OpenSeaMap

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews47 reviews
Positive38.3%
Neutral12.8%
Negative48.9%

Navily

All ratings832 ratings
Positive96.3%
Neutral1.6%
Negative2.2%
Written reviews233 reviews
Positive93.6%
Neutral2.1%
Negative4.3%

Bugs and requests

OpenSeaMap

Not enough reviews yet to summarise bugs or requests.

Navily

Reported bugs

3 issues
  • Booking cancellations not working
  • Spinning icon issue with past bookings
  • Difficulty accessing messages from map view

Requested features

5 requests
  • Offline map downloads
  • Improved route planning tools
  • Live chat with other users
  • Customizable notifications
  • Better integration with navigation apps

In-app purchases

1 purchases

OpenSeaMap

One-time1
  • OpenSeaMap Professional$1.99
4 purchases

Navily

Subscriptions3
  • Navily Premium$9.491 Year
  • Navily Premium$18.491 Year
  • Navily Premium$24.991 Year
One-time1
  • Navily Premium 30 days$17.99

Questions

Is OpenSeaMap free?
OpenSeaMap is free to download, with in-app purchases available.
Is Navily free?
Navily is free to download, with in-app purchases available.
Which has better reviews, OpenSeaMap or Navily?
Navily is rated higher. OpenSeaMap averages 1.0 out of 5 from 1 ratings, while Navily averages 4.8 from 832 ratings.
Do OpenSeaMap or Navily have ads?
Neither OpenSeaMap nor Navily shows ads.
Which is updated more often, OpenSeaMap or Navily?
OpenSeaMap ships an update every 2 months, and Navily fortnightly. Most recently, OpenSeaMap was updated on October 12, 2026 and Navily on October 15, 2026.

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