API-first freight analytics for shipbrokers — not built for commodity traders
| Feature | Axiom Overwatch | Signal Ocean |
|---|---|---|
| Grain & dry bulk flow tracking | Yes | Partial |
| Oil & gas flow tracking | Yes | Partial |
| LNG cargo tracking | Yes | No |
| Satellite crop intelligence (NDVI) | Yes | No |
| Draft-based cargo estimation | Yes | No |
| Risk & sanctions scoring | Yes | No |
| Dark fleet detection | Yes | Partial |
| Self-serve API access | Yes | Yes |
| Starting price | $499/mo (Professional) | ~$300/mo |
| Free tier | Yes | No |
Signal Ocean provides API-first maritime analytics focused on freight market intelligence — voyage analytics, vessel positioning, and chartering signals for dry bulk and tanker operators. It is a well-built product for shipbrokers and fleet operators who need freight rate signals. The product is not designed for commodity flow analysis: there is no cargo estimation, no commodity flow aggregation, no crop intelligence, and no risk scoring.
Choose Axiom Overwatch if your goal is commodity flow intelligence — knowing how much grain loaded at Santos or how LNG is flowing through Sabine Pass — rather than freight market signals.
Get started freeChoose Signal Ocean if you are a shipbroker or freight trader who needs clean API access to vessel positioning and chartering intelligence.
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