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MarineTraffic and VesselFinder are both useful ship-tracking apps, but neither is universally better. MarineTraffic is the more feature-rich choice for mobile users who want augmented reality, nautical maps, voyage planning and weather tools. VesselFinder is the better fit when port calls, vessel analysis, large fleets or a clearly separated terrestrial-versus-satellite choice matter most. Your location, need for offshore coverage, history requirements and subscription scope should decide the purchase—not an assumed accuracy winner.
At a glance
| Name | Best for | Key spec | Free plan / price | Platforms | Checked |
|---|---|---|---|---|---|
| MarineTraffic | Mobile users who want navigation-oriented tools and a broad bundled feature set | Free fleet up to 5; Mobile Pro fleet up to 20, with satellite, terrestrial and roaming AIS | Free tier; Mobile Pro displayed at US$4.99/month | Mobile app; Mobile Pro is app-only and does not unlock web features | November 2026 |
| VesselFinder | Users prioritising port calls, vessel information, large fleets and offshore tracking | Satellite tier: up to 2,000 ships in My Fleet and 90 days of track history | Free mobile app; Premium terrestrial tier; Satellite displayed at US$139/month or US$1,399/year | Mobile app and web subscription services | November 2026 |
Prices checked November 2026.
Displayed prices can vary by country, tax, billing channel and promotion. Confirm the checkout total and plan inclusions before paying.
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Which ship-tracking app is better overall?
Choose MarineTraffic if your priority is a polished mobile toolkit: augmented reality, nautical charts, voyage planning, weather forecasts and a modest personal fleet. Choose VesselFinder if you need extensive vessel and port-call information, a much larger saved fleet or a plan explicitly combining terrestrial and satellite AIS.
This is a feature-based decision from the providers’ published materials, not a controlled comparison of accuracy or latency. Neither service promises a continuous, perfect view of every ship, and the sources do not establish that one app is universally more accurate or faster.
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How does AIS coverage change what you see?
AIS apps display reports received from ships through available terrestrial receivers, satellite networks or both. Terrestrial AIS is generally strongest near coasts and receiver-covered waterways. Satellite AIS can add offshore visibility, but it still depends on a vessel transmitting AIS and on the service receiving and processing that report.
VesselFinder explains that when a ship is outside terrestrial coverage, the app may continue to show its last reported position until a new report arrives. That means a marker can look current while actually being stale. MarineTraffic similarly distinguishes terrestrial and roaming AIS in its free experience from satellite-enabled access in Mobile Pro. Treat both apps as information tools, not navigational safety systems or guaranteed locators.
Why a ship may be “out of range”
- The vessel has sailed beyond the local terrestrial receiver network.
- The ship is not transmitting AIS, or its signal is blocked, interrupted or unavailable.
- Satellite coverage or processing has not yet produced a newer report.
- The app is displaying the most recent known position rather than a live fix.
If the position matters, check the report timestamp, compare the vessel’s track history and look for a recent port call. Do not infer that a stationary icon proves the ship is stationary.
What are the main feature differences?
| Reader need | MarineTraffic | VesselFinder | What it means |
|---|---|---|---|
| Free use | Terrestrial and roaming AIS, basic vessel and port details, and up to five tracked vessels | Free mobile app; paid subscriptions add higher-tier capabilities | Occasional local tracking may not require a subscription. |
| Offshore tracking | Mobile Pro lists satellite, roaming and terrestrial AIS | Premium is terrestrial-only; Satellite combines terrestrial and satellite AIS | Compare the satellite tiers if you need ocean coverage. |
| History | Mobile Pro includes past tracks and historical events | Satellite lists up to 90 days of track history | Check the exact history window for your plan before purchase. |
| Fleet size | Free: up to 5; Mobile Pro: up to 20 | Satellite: up to 2,000 ships in My Fleet | The limits are not equivalent measures of app performance. |
| Distinctive tools | Augmented reality, nautical maps, voyage planning and weather forecasts | Map styles, weather layers, distance measurement, routes and ETAs, port calls and fleet management | Match the workflow to the tools you will actually use. |
| Subscription boundary | Mobile Pro is exclusive to the mobile app and cannot be used on the web platform | Individual subscriptions are separate from API and historical-data services | Do not assume an app purchase includes web, API or bulk-data access. |
What does MarineTraffic include for free and in Mobile Pro?
MarineTraffic’s Mobile Pro FAQ, dated August 13, 2026, says the free mobile tier provides map search using terrestrial and roaming AIS, basic vessel and port details, and tracking for a fleet of up to five vessels.
Mobile Pro adds global vessel tracking using satellite, roaming and terrestrial AIS; detailed vessel and port data; seven-day wind and wave forecasts; historical tracks and events; nautical maps; voyage planning; augmented reality; and a fleet of up to 20 vessels. The FAQ also describes a seven-day trial for first-time users.
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The most important limitation is platform scope: MarineTraffic states that Mobile Pro is exclusive to the mobile app and cannot be used on its web platform. If you need web features, check the web service separately rather than assuming the mobile subscription transfers.
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- Coastal observers: the free tier may cover occasional local searches where terrestrial reception is good.
- Travel and maritime hobbyists: augmented reality and nautical maps can make identifying nearby vessels easier.
- Trip planners: voyage planning, historical tracks and weather forecasts put several planning tools in one app.
- Small fleets: a 20-vessel Mobile Pro limit is sufficient for personal monitoring without the much higher capacity offered by VesselFinder Satellite.
What does VesselFinder offer in its subscription tiers?
VesselFinder’s subscription page separates terrestrial and satellite coverage. Premium is limited to terrestrial AIS and is intended for users whose tracking area is served by coastal receivers. The Satellite tier combines terrestrial and satellite AIS for offshore or global tracking.
The Satellite plan lists up to 90 days of track history, up to 2,000 ships in My Fleet, extended port-call information and vessel-analysis tools. Those capacities are published plan limits, not evidence that the app will receive a report from every ship at every moment.
VesselFinder says its subscriptions are for individual use, do not renew automatically, and do not include API access or historical-data services. If you need data for software, research at scale or a separate historical archive, an ordinary app subscription is not the same product.
Who benefits most from VesselFinder?
- Port-focused users: port calls, arrivals and departures can be more important than visual navigation features.
- Researchers and enthusiasts: extended vessel details and up to 90 days of history support retrospective checks.
- Large fleet watchers: the Satellite tier’s published 2,000-ship My Fleet capacity is far above MarineTraffic’s listed limits.
- Offshore trackers: the plan structure makes it clear that Satellite—not Premium—is the relevant tier outside terrestrial coverage.
How much do MarineTraffic and VesselFinder cost?
Prices below are displayed figures from the providers’ 2026 materials and were checked in November 2026. They are not guaranteed checkout quotes.
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| Service and tier | Displayed price | Important scope |
|---|---|---|
| MarineTraffic Mobile Pro | US$4.99 per month | Mobile app only; satellite, roaming and terrestrial AIS; up to 20 vessels |
| VesselFinder Satellite | US$139 per month or US$1,399 per year | Terrestrial and satellite AIS; up to 2,000 ships; 90-day history |
MarineTraffic’s displayed Mobile Pro price came from its online-services material, while its support FAQ supplies the more detailed feature description. The online-services page was not directly accessible during the available data, so treat the displayed price as lower-confidence than the documented plan scope.
VesselFinder’s displayed Satellite price is dramatically higher than the MarineTraffic Mobile Pro figure, but the plans are not equivalent: VesselFinder lists a much larger fleet, longer published history and a different subscription structure. Compare the capabilities you need, not just the monthly number.
What should you check at checkout?
- Confirm whether the price is monthly or annual and whether the annual figure is paid upfront.
- Check currency conversion, local taxes and app-store billing differences.
- Verify that satellite coverage is included in the selected tier.
- Confirm whether the subscription applies to the mobile app, website or both.
- Read renewal and cancellation terms. VesselFinder says its subscriptions do not auto-renew; do not assume the same rule applies to every MarineTraffic channel.
- Check the current fleet and history limits because plan pages can change.
Which app is better for common use cases?
| If you need to… | More suitable starting point | Why |
|---|---|---|
| Identify ships near a coast occasionally | MarineTraffic free or VesselFinder free | Start with terrestrial coverage before paying for satellite data. |
| Follow a vessel across an ocean | Compare MarineTraffic Mobile Pro with VesselFinder Satellite | Both list satellite-enabled access; neither guarantees uninterrupted updates. |
| Manage dozens or hundreds of ships | VesselFinder Satellite | Its published My Fleet limit is up to 2,000 ships, versus 20 on MarineTraffic Mobile Pro. |
| Plan a recreational voyage on a phone | MarineTraffic Mobile Pro | Its documented bundle includes nautical maps, voyage planning, weather and augmented reality. |
| Investigate port activity and vessel history | VesselFinder Satellite | It lists extended port-call and vessel-analysis tools and 90 days of history. |
| Use tracking data in your own software | Neither ordinary subscription by default | VesselFinder explicitly excludes API and historical-data services; verify separate commercial access with either provider. |
How do I choose between them?
Use this five-question decision process before subscribing:
- Where are the ships? If they remain near receiver-covered coasts, terrestrial access may be enough. For ocean passages, compare the satellite tiers.
- How many vessels must you save? Five or 20 may suit a personal watch list; a large fleet points toward VesselFinder Satellite’s published 2,000-ship limit.
- How much history is required? If you need a specific number of days, verify it on the current plan page. VesselFinder Satellite lists 90 days; MarineTraffic Mobile Pro lists historical tracks without the FAQ excerpt specifying an equivalent day count.
- Which tools are central? Choose MarineTraffic for augmented reality, nautical maps, voyage planning and seven-day wind and wave forecasts. Choose VesselFinder for port calls, vessel analysis, map and weather layers, routes, ETAs and distance measurement.
- Which platform do you use? MarineTraffic Mobile Pro is mobile-only. Confirm web access separately if a desktop workflow is essential.
Try the free tier first where possible. A local coverage check can reveal whether paying for satellite data solves your actual problem or merely adds features you will not use.
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How can I troubleshoot a stale or missing position?
- Open the vessel record and note the time of the last AIS report.
- Check whether the vessel is outside terrestrial coverage and whether your plan includes satellite AIS.
- Review the track history for a newer report or a gap in transmissions.
- Search by IMO number or call sign if the vessel name is shared by multiple ships.
- Look at port-call data for the last confirmed arrival or departure.
- Refresh later rather than treating the last marker as a guaranteed live position.
A missing position can be a coverage or transmission issue, not an app malfunction. Both services depend on received AIS data, and neither should replace official navigational information.
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Is there a professional alternative?
The European Maritime Safety Agency’s Integrated Maritime Services mobile app is a separate professional option. EMSA describes vessel traffic, filtering, favourites, vessel details, tracks and other maritime layers, but access is limited to registered IMS users from member-state authorities and EU agencies. It is not a normal consumer substitute for MarineTraffic or VesselFinder.
How we picked
The comparison uses the providers’ documented coverage models, plan limits, mobile tools, history, fleet features, platform boundaries and displayed November 2026 prices. It does not use app-store anecdotes, an independent accuracy test or a latency benchmark. Where the sources do not establish a fact—such as a universal accuracy winner—the article leaves that claim undecided.
Frequently asked questions
Can I use MarineTraffic Mobile Pro on a computer?
No. MarineTraffic’s support FAQ says Mobile Pro is exclusive to the mobile app and cannot be used on the web platform. Check MarineTraffic’s separate web offerings if desktop access is required.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchDoes a satellite plan show every ship continuously?
No. Satellite AIS extends reception beyond terrestrial networks, but updates still depend on the ship transmitting AIS and the service receiving a report. A vessel can remain at its last known position until new data arrives.
Are VesselFinder subscriptions automatically renewed?
VesselFinder says its subscriptions do not renew automatically. Still verify the current billing terms at checkout, especially if you purchase through a different channel or region.
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Can I buy an API with a normal app subscription?
Not necessarily. VesselFinder explicitly separates individual subscriptions from API and historical-data services, so an app plan should not be treated as a licence for automated or bulk access. Ask the provider about the appropriate data product for software use.
Frequently Asked Questions
Can I use MarineTraffic Mobile Pro on a computer?
No. MarineTraffic says Mobile Pro is exclusive to the mobile app and cannot be used on its web platform. Check separate web offerings if desktop access is essential.
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No. Satellite AIS extends coverage but still depends on vessel transmissions and received reports. A ship may remain at its last reported position until a new update arrives.
Are VesselFinder subscriptions automatically renewed?
VesselFinder says its subscriptions do not renew automatically. Confirm the billing terms at checkout, particularly when purchasing through another channel or region.
Can I use an app subscription for API access?
Not by default. VesselFinder separates individual subscriptions from API and historical-data services, so automated or bulk use requires a separate product.
