Comparison

SeaNav vs Coastal Explorer

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

Head to head
About

SeaNav

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.

Highlights
  • High-resolution marine charts
  • Autoroute planning
  • Real-time GPS navigation
  • AIS ship tracking
  • Tides and weather
  • Offline chart access
  • Augmented Reality View
Features
Read full description

SeaNav combines high-resolution marine charts, route planning and real-time navigation in one simple boating app for your iPhone, iPad and Apple Watch. Charts, Autoroute planning, AIS ship tracking, tides and weather in one powerful and affordable navigation app. Built from official hydrographic data with extensive coverage across North America, Europe and Australia. Professional marine navigation features including: Planning • Create and edit routes with auto-routing for creating waypoints • Measure distance & bearing • Import & export GPX routes • Tides, Streams & Weather • Works offline Navigate with Confidence • Real-time GPS navigation • Course Up & North Up modes • ETA, XTE, VMG, SOG & COG • Sailing HUD display • Background navigation • Automatic Waypoint advancing & alerts Live AIS & Safety (Optional IAP) • Real-time AIS ship positions • Collision alarms • AIS position sharing • Internet AIS integration • Free AIS when used with Boat Beacon • MOB and Anchor alarm (IAP) - NMEA Link for Depth, Wind & AutoPilot - Real time local wind feed and Sailing laylines display (IAP) Alongside this SeaNav offers advanced onboard capabilities rarely found in a single app: Apple Watch app SeaNav for Apple Watch is included at no extra cost, giving you route data, key navigation information and quick access controls directly from your wrist. Sophisticated AIS Display and Position sharing The leader in the field with global coverage and clear, information-rich vessel tracking with intelligent filtering and collision prediction tools. CPA and TCPA alerts help you assess risk early and act confidently. Augmented Reality View Overlays navigation, AIS and chart data directly onto the real-world camera view for intuitive situational awareness. Includes night mode support for compatible thermal cameras such as FLIR. SeaNav Autoroute and Autopilot Integration - Just choose where you want to go and SeaNav will create the route for you - Go one step further and let SeaNav pilot the route with compatible autopilot systems from Raymarine, SIMRAD, Lowrance and B&G SeaNav comes with a built-in tutorial mode with free access to all features including charts, AIS, AR & wind The free version includes all navigation and trip planning tools. High resolution vector charts are available by In App Purchase (IAP) including updates for 12 months. Requirements: GPS only required for real time route navigation. Optional Real time AIS, Tides and Weather information require an active internet connection. WiFi-only iPad will need an external GPS receiver for navigation. Please note that continued use of GPS running in the background can dramatically decrease battery life. Subscriptions Our in-app purchases are 1 year subscriptions, which automatically renew at the end of the subscription period unless auto-renew is turned off at least 24-hours before the end of the current period. Payment will be charged to your iTunes Account at confirmation of purchase, and will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the iTunes account holder and auto-renewal may be turned off by going to Account Settings after purchase. 
No cancellation of the current subscription is allowed during active subscription period. NOTICES: This product has been derived in part from material obtained from the UK Hydrographic Office with the permission of the UK Hydrographic Office, Her Majesty’s Stationery Office.” “© British Crown Copyright, [2026]. All rights reserved. The UK Hydrographic Office (UKHO) and its licensors make no warranties or representations, express or implied, with respect to this product. The UKHO and its licensors have not verified the information within this product or quality assured it. Terms of Use: http://seanav.net/termsofuse.php Privacy Policy: http://seanav.net/privacy.php Support: help@pocketmariner.com

About

Coastal Explorer

Plan and log your cruises with detailed nautical charts and weather forecasts. Enhance your experience with a subscription for offline access, real-time navigation, and integration with marine electronics.

Highlights
  • View NOAA and USACE nautical charts
  • Create routes and waypoints
  • Cloud synchronization
  • ActiveCaptain points of interest
  • US Coast Pilot information
  • Marine weather forecasts
  • Tide and current predictions
Features
Read full description

Coastal Explorer™ is a sophisticated, full-featured, easy-to-use cruise planning and logging tool designed specifically for the pleasure boater. And it becomes a complete navigation system with the purchase of a chart subscription. The free Coastal Explorer app provides these great planning features: * View NOAA and USACE nautical charts for the US in vector format * Create routes, waypoints, boundaries, and other navigation objects * Cloud-synchronization of your navigation objects * ActiveCaptain points of interest * US Coast Pilot information * Marine weather forecasts and observations for the US * Tide and current predictions for the US Purchasing a chart subscription turns Coastal Explorer into a complete navigation system that includes: * Downloadable charts, tide and current predictions, Coast Pilot, and ActiveCaptain places for offline use * Interfacing with compatible networked marine electronics devices, including GPS, compass, depth sounder, anemometer, AIS, autopilot, and more * Customizable instrument panels * Route following with cross-track error, distance and time to go, estimated time of arrival, etc * Track and event recording * Integrated blogging Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. See our Terms of Service at https://www.rosepoint.com/legal/terms_of_service.

Screenshots

SeaNav4 screens
Coastal Explorer4 screens

Verdict

The call

The clearest difference is review sentiment: SeaNav at 55% against Coastal Explorer's 11%. SeaNav also leads on rating (4.4 vs 2.8) and ratings volume (247 vs 16). Coastal Explorer's advantage is update cadence (every 2 weeks vs every 3 weeks). 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. SeaNav sells 18 in-app purchases, starting at $4.99 per year and Coastal Explorer sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SeaNav holds the better App Store score, 4.4 against 2.8. That said, the two scores are not equally well evidenced: SeaNav has 247 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 55% of SeaNav's written reviews are positive against 11% of Coastal Explorer's.

UpkeepUpdate frequency

SeaNav ships an update every 3 weeks, Coastal Explorer every 2 weeks. The most recent releases landed on September 22, 2026 and September 6, 2026 respectively.

Scorecard4 real differences · 6 level
SeaNav versus Coastal Explorer: the parameters behind the verdict, then further details
ParameterSeaNavCoastal Explorer
PriceFreeFree
Rating4.4 (247 ratings) — better2.8 (16 ratings)
Positive reviews54.7% of reviews — better11.1% of reviews
Number of ratings247 — better16
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size159 MB54 MB
Age rating4+4+
DeveloperPocket Mariner Ltd.Rose Point Navigation Systems, Inc

Customer experience

SeaNav

All ratings247 ratings
Positive83.0%
Neutral5.3%
Negative11.7%
Written reviews64 reviews
Positive54.7%
Neutral3.1%
Negative42.2%

Coastal Explorer

All ratings16 ratings
Positive43.8%
Neutral0.0%
Negative56.3%
Written reviews9 reviews
Positive11.1%
Neutral0.0%
Negative88.9%

Bugs and requests

SeaNav

Reported bugs

8 issues
  • Frozen/locked app
  • Not picking up vessels or ship traffic
  • App does not open
  • Crashes after crashes
  • Sailing mode crash
Show 3 more
  • Confused and buggy, buttons hidden
  • Crashes when pressing boat button
  • French charts missing information (buoys, wind farms)

Requested features

7 requests
  • Can you see water depth on Apple Watch?
  • Download all purchased charts button
  • Update all purchased charts button
  • Legend for symbols and colors
  • Brief chart reading explainer
Show 2 more
  • Course integration with NMEA 2000 devices
  • Easy export/import of route plans between iOS devices

Coastal Explorer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

18 purchases

SeaNav

Subscriptions16
  • Weather charts$4.991 Year
  • New Zealand Charts$5.991 Year
  • NOAA US Raster Charts$9.991 Year
Show 13 more
  • US Charts$9.991 Month
  • Pro Features$10.491 Year
  • Bermuda and BVI Charts$12.991 Year
  • Italy, Sardinia and Sicily$17.991 Year
  • Norwegian Charts$18.491 Year
  • US Charts$19.991 Year
  • Portuguese Charts$19.991 Year
  • BE & NL Charts$20.991 Year
  • Spanish Charts$24.991 Year
  • UK & IE Charts$24.991 Year
  • French Charts$24.991 Year
  • Canadian Charts$26.991 Year
  • Croatian Charts$28.491 Year
One-time2
  • Man Overboard & Anchor Watch$4.99
  • Pro Features$14.99
2 purchases

Coastal Explorer

Subscriptions2
  • Monthly Subscription$19.991 Month
  • Yearly Subscription$49.991 Year

Questions

Is SeaNav free?
SeaNav is free to download, with in-app purchases available.
Is Coastal Explorer free?
Coastal Explorer is free to download, with in-app purchases available.
Which has better reviews, SeaNav or Coastal Explorer?
SeaNav is rated higher. SeaNav averages 4.4 out of 5 from 247 ratings, while Coastal Explorer averages 2.8 from 16 ratings.
Do SeaNav or Coastal Explorer have ads?
Neither SeaNav nor Coastal Explorer shows ads.
Which is updated more often, SeaNav or Coastal Explorer?
SeaNav ships an update every 3 weeks, and Coastal Explorer every 2 weeks. Most recently, SeaNav was updated on September 22, 2026 and Coastal Explorer on September 6, 2026.

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