Comparison

iNavX vs SeaDrive

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

Head to head
About

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.

Highlights
  • Worldwide marine chart access
  • Real-time GPS plotting
  • Waypoint and route management
  • GRIB weather forecasts
  • AIS integration
  • Nautical instrument connectivity
Features
Read full description

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

About

SeaDrive

This marine navigation app offers offline charting, route planning, and tide/current predictions. It provides free US charts and integrates weather forecasts and points of interest like marinas. Share your live track with others for enhanced safety and communication on the water.

Highlights
  • Offline charting and navigation
  • Route building and navigation
  • Tide and current predictions
  • 5-day weather forecasts
  • Live track sharing
  • Points of Interest (marinas, boat ramps)
Features
Read full description

* What is Sea Drive? Sea Drive is a marine and boating navigation application focused on charting, navigation, route building, track recording, tides, currents, and more! Our goal is to provide the best user experience for boaters on and off the water. Sea Drive provides FREE US charts! We believe that everyone should have the tools on the water to feel safe and know how to find their way home (or pull up to a restaurant). * Who is it for? Sea Drive is for all of you who love the water! If you spend time on sailboats, fishing boats, bowriders, wakeboard boats, kayaks, or canoes this app will quickly become your go to co-captain * What are the features? **Offline Use Sea Drive is meant to be used on the water and in the real world, that means cell service won't always be available. Charting, tides, currents, routing, tracks, GPS, compass, and more are all available without internet! ** Free Chart Data (US) Currently only US charts are available (and will always remain free thanks to NOAA and your tax dollars). As Sea Drive improves we will be adding other chart regions for free or as low cost as possible. ** Tides and Currents Tap a tides or currents icons on the chart to view offline predictions (for years into the future) at over 3000 locations. ** Build and Navigate Routes Build routes with easy to add waypoints, drag waypoints, delete waypoints, and give waypoints custom names. Export and share your routes with other boaters. Activate a route to see bearing (magnetic or true) to waypoints, estimated time to waypoints, and ETA at destination among other metrics. ** Record Tracks Review and playback previously recorded tracks. ** Create and Share Markers Add notes and measure distances to markers. ** Basic Features Location (GPS & Compass). Caliper tool. Display settings for custom chart options. Vessel details for hazard avoidance and route planning. Satellite and road map chart overlays. ** POI We've integrated with marinas.com so we can show points interest directly on the chart for features like marinas, boat ramps, anchorage areas, inlets, locks, harbors and more. ** Weather View weather forecasts for up to five days in the future including marine related weather like wind, gusts, swells, and wave information. ** Live Track Sharing Create a live track share and send the link to friends. When imported, followers will see your current location and previous track directly on the Sea Drive app or website. * We love feedback! Sea Drive is built by boaters for boaters. This is just the start of our journey and we would like you all to be a part of it with us! Please provide any and all feedback!

Screenshots

iNavX4 screens
SeaDrive4 screens

Verdict

The call

The clearest difference is review sentiment: SeaDrive at 89% against iNavX's 44%. SeaDrive also leads on ads (none vs shown) and update cadence (fortnightly vs every 5 weeks). iNavX's advantage is ratings volume (22K vs 248) and rating (4.8 vs 4.5). On price, in-app purchases, monetization model and device support 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. iNavX sells 11 in-app purchases, starting at $9.99 per month and SeaDrive sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

iNavX holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 248, so its average is the more settled of the two. Written reviews complicate that: 44% of iNavX's written reviews are positive against 89% of SeaDrive's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

iNavX ships an update every 5 weeks, SeaDrive fortnightly. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

Scorecard7 real differences · 4 level
iNavX versus SeaDrive: the parameters behind the verdict, then further details
ParameteriNavXSeaDrive
PriceFreeFree
Rating4.8 (22K ratings) — better4.5 (248 ratings)
Positive reviews43.8% of reviews89.5% of reviews — better
Number of ratings22K — better248
Update frequencyEvery 5 weeksFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#143 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.1
Further details — not scored
Size298 MB58 MB
Age rating4+4+
DeveloperNavX Studios LLCSeaDrive LLC

Customer experience

iNavX

All ratings21,564 ratings
Positive95.9%
Neutral2.4%
Negative1.7%
Written reviews461 reviews
Positive43.8%
Neutral6.1%
Negative50.1%

SeaDrive

All ratings230 ratings
Positive89.1%
Neutral3.9%
Negative7.0%
Written reviews19 reviews
Positive89.5%
Neutral0.0%
Negative10.5%

User reviews

iNavX

From 22K App Store ratings

What 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

SeaDrive

From 248 App Store ratings

What we love

  • 👍 Intuitive and easy to use interface
  • 🗺️ Accurate navigation and depth finder
  • 🌟 Great for planning routes and marking spots
  • 🤝 Easy to share trips with friends
  • 💨 Excellent weather and tide features

Room to improve

  • 🐛 Waypoints deleted multiple times
  • 🐛 Vessel location disappeared
  • 🐛 App crashes when downloading 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

SeaDrive

Reported bugs

3 issues
  • Waypoints are deleted by the app
  • Vessel location disappears
  • App crashes during chart download on older devices

Requested features

2 requests
  • Consider adding more advanced charting options
  • Further refine waypoint saving reliability

In-app purchases

11 purchases

iNavX

Subscriptions11
  • Theyr Premium - Mobile (Monthly) for iOS$9.991 Month
  • iNavX Professional+ USA$29.991 Year
  • Navionics+ USA/Canada (iPhone)$29.991 Year
Show 8 more
  • Navionics+ Caribbean (iPhone)$44.991 Year
  • Theyr Premium Weather$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
3 purchases

SeaDrive

Subscriptions2
  • Sea Drive Pro2 Months trial$2.991 Month
  • Sea Drive Pro1 Month trial$34.991 Year
One-time1
  • US ChartsFree

Questions

Is iNavX free?
iNavX is free to download, with in-app purchases available.
Is SeaDrive free?
SeaDrive is free to download, with in-app purchases available.
Which has better reviews, iNavX or SeaDrive?
iNavX is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while SeaDrive averages 4.5 from 248 ratings.
Do iNavX or SeaDrive have ads?
iNavX shows ads; SeaDrive does not.
Which is updated more often, iNavX or SeaDrive?
iNavX ships an update every 5 weeks, and SeaDrive fortnightly. Most recently, iNavX was updated on October 17, 2026 and SeaDrive on October 11, 2026.

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