AV Assistant vs SeaDrive
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AV Assistant
This app provides U.S. waters navigation information, displaying your location and details of surrounding aids like buoys and lights. It downloads weekly U.S. Coast Guard Light List data and includes relevant Local Notice for Mariners information. It also allows users to report discrepancies in navigation aids to the U.S. Coast Guard.
- Location-based aid display
- U.S. Coast Guard Light List data
- Local Notice for Mariners integration
- Discrepancy reporting to USCG
- Informational aid for U.S. waters
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AV Assistant is an informational aid for U.S. waters that shows your location and details on all surrounding aids to navigation (buoys, lights, etc) within your Area of Interest. The app downloads the weekly U.S. Coast Guard Light List for your district, and then shows the aids within your Area of Interest and their details. Any applicable Local Notice for Mariners information is also shown with the light data. For reference use, Nearest Light, also in the App Store, is the better choice. AV Assistant is capable of making reports to the U.S. Coast Guard regarding discrepancies in aids to navigation and is primarily intended for USCG and USCG Auxiliary use. Refer to the website (url in Settings|Reference) for additional information. Warning: AV Assistant, which provides Light List data, is not intended to be used in place of charts or Coast Pilots. Charts should be consulted for the location of all aids to navigation. It may be dangerous to use aids to navigation without reference to charts.
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!
Screenshots
Verdict
The clearest difference is in-app purchases: AV Assistant at none against SeaDrive's 3. AV Assistant also leads on rating (5.0 vs 4.5) and iOS requirement (12.4 vs 18.1). SeaDrive's advantage is ratings volume (248 vs 4) and update cadence (fortnightly vs every 2 months). On price, ads 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
Both are free to download. SeaDrive sells 3 in-app purchases, starting at $2.99 per month. AV Assistant asks for nothing beyond the download.
AV Assistant holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SeaDrive has 248 ratings behind it against 4, so its average is the more settled of the two.
AV Assistant ships an update every 2 months, SeaDrive fortnightly. The most recent releases landed on June 1, 2026 and September 25, 2026 respectively.
| Parameter | AV Assistant | SeaDrive |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.5 (248 ratings) |
| Positive reviews | — | 89.5% of reviews |
| Number of ratings | 4 | 248 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.4 — better | 18.1 |
| Further details — not scored | ||
| Size | 5 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Clint O'Connor | SeaDrive LLC |
Customer experience
AV Assistant
SeaDrive
In-app purchases
AV Assistant
No in-app purchases
SeaDrive
- Sea Drive Pro2 Months trial$2.991 Month
- Sea Drive Pro1 Month trial$34.991 Year
- US ChartsFree









