iNavX vs SeaNav
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iNavX
This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.
- Worldwide marine chart access
- Real-time GPS plotting
- Waypoint and route management
- GRIB weather forecasts
- AIS integration
- Nautical instrument connectivity
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Marine navigation is made easy with iNavX - the world's #1 handheld Chartplotter. Access marine charts, maps, weather, AIS and more! iNavX is the only app to give you complete worldwide chart coverage, from all your favorite charts providers, including the ALL NEW iNavX Professional+ Chart series! Fully enabled with one-touch access, iNavX gives users access to the broadest set of marine charts and maps from multiple providers including: • iNavX Professional+ Charts • Blue Latitude • CHS • Explorer • Theyr Weather • Waterway Guide • … and more How does iNavX take handheld marine navigation to the next level? • Sailors - Plan sailing routes with waypoint and route management. Get proactive sail management with GRIB weather forecasts and then keep watch with AIS overlays and integration with your onboard systems. Plus, you can remember your great sailing locations by geotagging photos. • Boaters - Stay up to date on boating conditions with forecasts that include currents, winds, and swells. Manage your boating equipment with nautical instrument integration and then save great boating routes to share with the track log. • Anglers - Discover new fishing spots by scouting out holes and inlets. Locate the best fishing conditions by identifying cold fronts and save your best fishing spots with unlimited markers. Advanced features - iNavX is the most feature rich app available for all sailing and boating needs at a great price: Advanced Chart Plotter • Plot your position in real-time using your device's built-in GPS • Pan, zoom, and rotate charts (including course up) • Print detailed charts to use in combination with the app Advanced Navigation • Create waypoints and plan routes to navigate between them • Track log allows you to record your route • Import/export data in KML (Google Earth) or GPX format Advanced Instrumentation • Supports NMEA data over TCP/IP (using Wifi) • Integrates with external GPS, AIS receivers & transponders • Connect nautical instruments: Depth, Speed, Wind, Engine, Batteries, etc. Essential Toolkit • GRIB weather forecast • Tides/currents • Anchor alarm • AIS integration • Port/navaid search Download iNavX TODAY and automatically receive a complimentary copy of the official and up-to-date high-resolution NOAA RNC United States marine raster charts. REVIEWS “iNavX is the original and still one of the best navigation apps.” – Practical Sailor “The most full-featured navigation app around and viewed by many as the standard” – Sail Magazine "The #1 recommended marine charting app" - iMarineApps iNavX is Compatible with: Theyr Weather, Waterway Guide, AIS, Brookhouse, DigitalYacht, ShipModul, vYacht, Vesper Marine, NMEA 2000, Chetco and more. NEW CHART STORE Purchase all your favorite charts. Chart subscriptions vary by chart and provider from $9.99 to $199.99 annually, charged to your iTunes Account, which will automatically renew unless cancelled at least 24 hours before the end of the current period. Auto-renew can be turned off anytime by going to your Account Settings in iTunes after purchase. No cancellation of the current subscription is allowed during active subscription period. NOTE: Continued use of GPS running in the background can dramatically decrease battery life. MORE INFO Website: http://inavx.com/ User's Guide: http://inavx.com/help/ Terms of Use: http://inavx.com/terms Privacy Policy: http://inavx.com/privacy
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.
- High-resolution marine charts
- Autoroute planning
- Real-time GPS navigation
- AIS ship tracking
- Tides and weather
- Offline chart access
- Augmented Reality View
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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
Screenshots
Verdict
The clearest difference is ads: SeaNav at none against iNavX's shown. SeaNav also leads on review sentiment (55% vs 44%). iNavX's advantage is rating (4.8 vs 4.4) and ratings volume (22K vs 247). On price, update cadence, 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
Both are free to download. iNavX sells 11 in-app purchases, starting at $9.99 per month and SeaNav sells 18 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.
iNavX holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 247, so its average is the more settled of the two. Written reviews complicate that: 44% of iNavX's written reviews are positive against 55% of SeaNav's, so the app with the better star average is not the one people write more warmly about.
iNavX ships an update every 5 weeks, SeaNav every 3 weeks. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.
| Parameter | iNavX | SeaNav |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (22K ratings) — better | 4.4 (247 ratings) |
| Positive reviews | 43.7% of reviews | 54.7% of reviews — better |
| Number of ratings | 22K — better | 247 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #116 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 298 MB | 159 MB |
| Age rating | 4+ | 4+ |
| Developer | NavX Studios LLC | Pocket Mariner Ltd. |
Customer experience
iNavX
SeaNav
User reviews
iNavX
From 22K App Store ratingsWhat we love
- 🚀 Accurate and precise navigation
- 📊 Comprehensive charting and navigation features
- 🛠️ Customizable instrument settings
- 🔄 Redundancy across devices
- 💨 Reliable performance over many years
Room to improve
- 🤔 Clunky and unintuitive user interface
- 🗺️ Cumbersome chart management and downloading
- 🔋 Battery drain issues
- 💰 Expensive subscription model for charts
- 🐛 Stability issues and crashes
SeaNav
From 247 App Store ratingsWhat 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
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
Bugs and requests
iNavX
Reported bugs
3 issues- Inability to remove waypoints
- Inconsistent behavior when transitioning International Date Line
- Disappearing or missing chart data
Requested features
5 requests- Seamless chart switching and panning
- Integrated tidal and current data
- Support for more chart types and providers
- Improved route planning and editing tools
- Automatic chart updates and management
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
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- 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
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- Course integration with NMEA 2000 devices
- Easy export/import of route plans between iOS devices
In-app purchases
iNavX
- Theyr Premium - Mobile (Monthly) for iOS$9.991 Month
- iNavX Professional+ USA$29.991 Year
- Navionics+ USA/Canada (iPhone)$29.991 Year
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- Navionics+ Caribbean (iPhone)$44.991 Year
- Theyr Premium Weather1 Year trial$49.991 Year
- iNavX Professional+ USA Canada$59.991 Year
- C-MAP World Chart$59.991 Year
- Explorer Chartbooks - Bahamas$69.991 Year
- Navionics+ USA/Canada (iPad)$79.991 Year
- Navionics+ Caribbean (iPad)$79.991 Year
- AIS Live$99.991 Year
SeaNav
- Weather charts$4.991 Year
- New Zealand Charts$5.991 Year
- NOAA US Raster Charts$9.991 Year
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- 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
- Man Overboard & Anchor Watch$4.99
- Pro Features$14.99






