Softwr

Maritime · head to head

FleetMon vs Nautilus Labs

F

FleetMon

Maritime

Track ships and manage fleets worldwide

From
Free
Rated
-
Full reviewWebsite
N

Nautilus Labs

Maritime

AI-powered vessel performance optimization

From
$1000/month
Rated
-
Full reviewWebsite

The short version

  • Only FleetMon has a free tier, so it costs nothing to try first.
  • Each has a real cost: FleetMon service discontinued in January 2024 and fully phased out with transition to MarineTraffic; Nautilus Labs limited to maritime shipping industry use case, not applicable for other transportation sectors
  • They diverge on capability: FleetMon covers Global vessel tracking, Nautilus Labs covers AI-powered optimization.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which FleetMon and Nautilus Labs actually diverge.

Attributes where FleetMon and Nautilus Labs differ
AttributeFleetMonNautilus Labs
Starting priceFree$1000/month
Pricing modelfreemiumsubscription
Free tierYesNo
PlatformsWeb, Ios, AndroidWeb
Founded20072016

Identical on both: user rating (Not yet rated), category (Maritime).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in FleetMon

  • Global vessel tracking
  • Port statistics
  • Voyage tracking
  • REST API
  • Webhooks
  • Data exports
  • Ios support
  • Android support

Only in Nautilus Labs

  • AI-powered optimization
  • Emissions tracking
  • Fuel efficiency
  • Performance benchmarking
  • IoT sensors
  • Vessel data recorders
  • Api support

Both cover

  • Fleet management
  • Web support

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

FleetMon

  • Service discontinued in January 2024 and fully phased out with transition to MarineTraffic
  • Free tier coverage was limited compared to premium plans requiring subscription fees
  • Data gaps in regions with poor terrestrial AIS infrastructure before satellite coverage was added

Nautilus Labs

  • Limited to maritime shipping industry use case, not applicable for other transportation sectors
  • Requires integration with vessel data collection systems for full functionality

Pricing, plan by plan

FleetMon

Free
  • Professional$19/month
    • Unlimited fleet tracking
    • API access
    • Historical data

Nautilus Labs

$1000/month
  • Fleet Platform$3000/month
    • AI optimization
    • Emissions tracking
    • Performance analytics

Which should you pick?

Choose FleetMon if

  • You need global vessel tracking.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want port statistics.
FleetMon review

Choose Nautilus Labs if

  • You need ai-powered optimization.
  • You also want emissions tracking.
Nautilus Labs review

Questions people ask

Is FleetMon or Nautilus Labs better?
Neither clearly leads. FleetMon starts at Free and Nautilus Labs at $1000/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FleetMon or Nautilus Labs?
FleetMon has a free tier; the other does not. Paid plans start at Free for FleetMon and $1000/month for Nautilus Labs.
Does FleetMon or Nautilus Labs run on more platforms?
FleetMon runs on Web, Ios, Android. Nautilus Labs runs on Web.
Can I use FleetMon for free?
Yes. FleetMon has a free tier, so you can try it without paying. Nautilus Labs starts at $1000/month.
What can FleetMon do that Nautilus Labs cannot?
FleetMon covers Global vessel tracking, Port statistics, Voyage tracking, REST API. Nautilus Labs covers AI-powered optimization, Emissions tracking, Fuel efficiency, Performance benchmarking. Both handle Fleet management, Web support.

Answered from the vendors’ own pages

FleetMon: Does FleetMon work globally?

FleetMon had access to positions from both terrestrial AIS receiver stations and satellite AIS through partnership with exactEarth, providing undelayed signals from its network combined with global space-based tracking.

Source
Nautilus Labs: What does Nautilus Labs do?

Nautilus Labs is a maritime AI platform that optimizes vessel performance and reduces emissions through voyage optimization, real-time prediction, and post-voyage analysis. The platform helps shipping operators improve fuel efficiency and meet decarbonization goals.

Source
FleetMon: What happened to FleetMon after 2024?

FleetMon was phased out from January 2024 as part of its integration into MarineTraffic following Kpler's acquisition of both platforms in March 2023. The FleetMon brand no longer accepts new registrations or offers new services.

Source
Nautilus Labs: Does Nautilus Labs help with sustainability?

Yes, Nautilus Labs' primary purpose is decarbonization. The platform optimizes ETA, fuel consumption, and CII metrics while providing emission reduction recommendations and vessel maintenance insights to shipping operators.

Source
FleetMon: Could you track individual vessels in real-time with FleetMon?

Yes, FleetMon Explorer provided live AIS vessel tracking with filtering by vessel class, flag, length, speed, navigational status and signal age, enabling real-time monitoring of individual ships from a global overview to single vessel level.

Source
Nautilus Labs: Who acquired Nautilus Labs?

Danelec, a Copenhagen-based maritime technology company, acquired Nautilus Labs in November 2023. The platform continues to operate and support customers on existing terms.

Source
FleetMon: What was the starting price for FleetMon Explorer?

FleetMon Explorer pricing started at €54 per month, with subscription plans offering varying levels of access including free basic plans and paid tiers with additional features like historical tracking up to three years back.

Source
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