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AIS Vessel Tracking

Axiom Overwatch vs VesselFinder

Free AIS tracking with global coverage — no commodity or trading intelligence

Feature Comparison

FeatureAxiom OverwatchVesselFinder
Grain & dry bulk flow trackingYesNo
Oil & gas flow trackingYesNo
LNG cargo trackingYesNo
Satellite crop intelligence (NDVI)YesNo
Draft-based cargo estimationYesNo
Risk & sanctions scoringYesNo
Dark fleet detectionYesNo
Self-serve API accessYesYes
Overwatch plans
Free$0/mo
Starter$49/mo
Pro$199/mo
Supply Chain Risk$499/mo
Free / $29/mo API
Free tierYesYes

Comparison not yet verified against VesselFinder's current pricing and feature pages. See VesselFinder's public site for the latest details.

What Overwatch doesn't do
  • –Live AIS coverage is terrestrial-only today — a handful of tracked ports (including Port Hedland, Tubarão, Dampier, and Hay Point) show no live vessel positions until a satellite or paid AIS feed is wired in.
  • –Dark-fleet confirmation runs on AIS signals only in production today; satellite (SAR) tip-and-cue confirmation exists in code but has not been launched or independently verified.
Axiom Overwatch
  • ✓Self-serve signup — no sales call required
  • ✓Free tier: 50 API requests/day, 7-day history
  • ✓Starter from $49/mo · Pro from $199/mo
  • ✓54 REST API endpoints
  • ✓Satellite NDVI crop intelligence across 12 regions
  • ✓14-factor vessel risk scoring
  • ✓Draft-based cargo estimation with hydrostatic validation
VesselFinder
Free tier

VesselFinder provides free AIS vessel tracking with global coverage, similar in scope to MarineTraffic. It shows real-time vessel positions, port calls, and voyage history. Like other pure AIS trackers, it does not provide commodity flow analysis, cargo volume estimation, crop intelligence, or risk scoring — it tracks ships, not trade.

Strengths
  • +Free web interface
  • +Clean, simple UI for vessel tracking
  • +Global AIS coverage
  • +Affordable API access
Limitations
  • –No commodity flow tracking
  • –No cargo estimation
  • –No satellite crop intelligence
  • –No risk or sanctions scoring

Which should you choose?

Choose Axiom Overwatch if…

Choose Axiom Overwatch if you need commodity flow intelligence — cargo volumes, export trends, satellite crop health, and risk scoring — not just vessel positions on a map.

Get started free
Choose VesselFinder if…

Choose VesselFinder if you need a free, simple tool to track where a vessel is or check its recent port calls.

Visit VesselFinder →

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Axiom Overwatch vs VesselFinder — Commodity Intelligence Comparison | Axiom Overwatch