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Maritime · head to head

S&P Global Maritime vs StormGlass

S&P Global Maritime logo

S&P Global Maritime

Maritime

Maritime intelligence and analytics

From
On request
Rated
-
Full reviewWebsite
StormGlass logo

StormGlass

Maritime

Global weather data API for maritime

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only StormGlass has a free tier, so it costs nothing to try first.
  • Each has a real cost: S&P Global Maritime pricing is not publicly disclosed, requiring direct contact with S&P Global for quotes; StormGlass the free tier allows 10 API requests per day and is not licensed for commercial use
  • They diverge on capability: S&P Global Maritime covers Vessel database, StormGlass covers Marine weather data.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which S&P Global Maritime and StormGlass actually diverge.

Attributes where S&P Global Maritime and StormGlass differ
AttributeS&P Global MaritimeStormGlass
Starting priceOn requestFree
Pricing modelUnknownfreemium
Free tierNoYes
PlatformsWeb, DesktopApi
Founded18602017

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 S&P Global Maritime

  • Vessel database
  • Ship valuations
  • Company intelligence
  • Market analytics
  • API
  • Excel add-in
  • Data feeds
  • Web support

Only in StormGlass

  • Marine weather data
  • Wave forecasts
  • Tide data
  • Historical weather
  • REST API
  • Webhooks
  • SDKs

Both cover

  • Api support

What people use each for

The jobs each tool is most often brought in to do.

S&P Global Maritime

No use cases recorded yet. See the S&P Global Maritime review.

StormGlass

  • Pulling marine weather and sea state forecasts into a vessel routing or planning toolnot S&P Global Maritime
  • Adding tide, wave and wind data to a maritime or coastal applicationnot S&P Global Maritime

Where each one falls short

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

S&P Global Maritime

  • Pricing is not publicly disclosed, requiring direct contact with S&P Global for quotes
  • Subscription model can be costly for small to medium-sized shipping operations

StormGlass

  • The free tier allows 10 API requests per day and is not licensed for commercial use
  • Commercial use and any support at all start at the Medium plan, 49 euros a month
  • The Small plan at 19 euros a month has no support and no commercial licence
  • Request allowances are daily rather than monthly, so a burst of traffic cannot borrow against a quiet week

Pricing, plan by plan

S&P Global Maritime

On request

No published plan breakdown. See the S&P Global Maritime review.

StormGlass

Free
  • FreeFree
    • 10 requests per day
    • All weather parameters
    • Not for commercial use
  • Small$19/month
    • 500 requests per day
    • All weather parameters
    • 10% annual discount available
  • Medium$49/month
    • 5000 requests per day
    • All weather parameters
    • Full support
  • Large$129/month
    • 25000 requests per day
    • All weather parameters
    • Full support

Which should you pick?

Choose S&P Global Maritime if

  • You need vessel database.
  • You work on Web, Desktop.
  • You also want ship valuations.
S&P Global Maritime review

Choose StormGlass if

  • You need marine weather data.
  • You want to start without paying.
  • You work on Api.
  • You also want wave forecasts.
StormGlass review

Questions people ask

Is S&P Global Maritime or StormGlass better?
Neither clearly leads. S&P Global Maritime starts at On request and StormGlass at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, S&P Global Maritime or StormGlass?
StormGlass has a free tier; the other does not. Paid plans start at On request for S&P Global Maritime and Free for StormGlass.
Does S&P Global Maritime or StormGlass run on more platforms?
S&P Global Maritime runs on Web, Desktop. StormGlass runs on Api.
Can I use StormGlass for free?
Yes. StormGlass has a free tier, so you can try it without paying. S&P Global Maritime starts at On request.
What can S&P Global Maritime do that StormGlass cannot?
S&P Global Maritime covers Vessel database, Ship valuations, Company intelligence, Market analytics. StormGlass covers Marine weather data, Wave forecasts, Tide data, Historical weather. Both handle Api support.

Answered from the vendors’ own pages

S&P Global Maritime: What data does S&P Global Maritime Sea-web provide?

Sea-web is a comprehensive maritime reference database with over 600 data fields on more than 220,000 ships of 100 GT and above, including information on ships, companies, builders, ports, movements, fixtures, casualties, performance, and security.

Source
StormGlass: Is there a free tier available?

Yes, Stormglass offers a free plan with 10 API requests per day, including all weather parameters, but it is not permitted for commercial use.

Source
S&P Global Maritime: Does S&P Global Maritime track shipping rates?

Yes, S&P Global provides over 765 meticulously assessed freight rate assessments across containers, tankers, dry freight, dry bulk, and marine fuels with real-time and historical data.

Source
StormGlass: What does the Medium plan include?

The Medium plan costs 49 EUR per month and includes 5000 daily requests, all weather parameters, and full support for commercial use.

Source
StormGlass: Is annual billing available?

Yes, a 10% discount is available when paying annually on Small, Medium, and Large plans.

Source
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