SeaDrive vs onNAV Marine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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)
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* 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!
onNAV Marine
This app offers advanced marine navigation with 3D charts, real-time weather, and safety alerts. Plan trips, track storms, and monitor conditions with a user-friendly interface for all boating enthusiasts.
- 3D ENC Day & Night Nautical Charts
- Multi-Device Anchor Alert
- Live Hurricane Tracker
- Live Buoy Weather & Cameras
- Offline Tide Charts
- Weather Radar
- Navigation Compass
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onNAV Marine: Ultimate Boating Navigation - BuoyCams, Hurricane Tracker, Threat Alert Tracker, Tide Charts, custom easy to read charts, and so much more onNAV Marine is the premier app for boaters, offering advanced navigation and safety tools in a user-friendly interface. Navigate nautical charts confidently, stay safe, and plan trips with ease, whether cruising, fishing, or sailing. From beginners to seasoned captains, onNAV Marine elevates every journey with offline access and seamless performance on iPhone, iPad, and iWatch, in horizontal or vertical modes. Key Features: • 3D ENC Day & Night Nautical Charts: Intuitive realCharts™ with true buoy icons and weather • Multi-Device Anchor Alert: Real-time notifications to iPhone, iPad, push, or text • Live Hurricane Tracker • Live Buoy Weather & Cameras: Real-time conditions, wind forecasts, wave height, buoy visuals • Tide Charts: Offline tide data for trip planning • Point-and-Click Sea Conditions: Instant interactive chart insights • Weather Radar: Track storms, currents effortlessly • Hurricane Tracker: Storm paths and tracking on live charts • Navigation Compass: Precise heading guidance • Share Waypoints: Seamlessly share sail navigation routes • Device Compatibility: Horizontal/vertical modes on iPhone, iPad Experience onNAV Marine with a 7-day free trial at no charge—we’re confident you’ll love it! To access the premium features above, a Pro Feature Account is required for $59.99 per year. Start your free trial today and enjoy smarter, safer boating! https://onnav.com/policies/terms-of-service
Screenshots
Verdict
The clearest difference is rating: SeaDrive at 4.5 against onNAV Marine's 4.2. SeaDrive also leads on ratings volume (263 vs 18). On price, review sentiment, update cadence and ads 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. SeaDrive sells 3 in-app purchases, starting at $2.99 per month and onNAV Marine sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
SeaDrive holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: SeaDrive has 263 ratings behind it against 18, so its average is the more settled of the two. Written reviews split almost evenly too, at 89% and 89% positive.
Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 24, 2026.
| Parameter | SeaDrive | onNAV Marine |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (263 ratings) — better | 4.2 (18 ratings) |
| Positive reviews | 89.5% of reviews — better | 88.9% of reviews |
| Number of ratings | 263 — better | 18 |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.1 | 18.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 152 MB |
| Age rating | 4+ | 4+ |
| Developer | SeaDrive LLC | onNAV LLC |
Customer experience
SeaDrive
onNAV Marine
Bugs and requests
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
onNAV Marine
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SeaDrive
- Sea Drive Pro2 Months trial$2.991 Month
- Sea Drive Pro1 Month trial$34.991 Year
- US ChartsFree
onNAV Marine
- One Month Pro7 Days trial$9.991 Month
- Three Months Pro7 Days trial$24.993 Months
- One Year Pro7 Days trial$49.991 Year








