Softwr

Software · head to head

Clarksons vs StormGlass

Clarksons logo

Clarksons

Software

World's leading shipbroker and data provider

From
$3000/month
Rated
-
Full reviewWebsite
S

StormGlass

Software

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: Clarksons uK government contract award notice on find-tender.service.gov.uk shows a Clarkson Research Services Limited data subscription contract valued at 6,500 GBP excluding VAT (7,800 GBP including VAT) for the period 1 November 2025 to 31 October 2026; StormGlass the free tier allows 10 API requests per day and is not licensed for commercial use
  • They diverge on capability: Clarksons covers Market intelligence, StormGlass covers Marine weather data.

Where they differ

Only the attributes on which Clarksons and StormGlass actually diverge.

Attributes where Clarksons and StormGlass differ
AttributeClarksonsStormGlass
Starting price$3000/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, ApiApi
Founded18522017

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

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 Clarksons

  • Market intelligence
  • Fleet database
  • Freight rates
  • Research reports
  • API
  • Excel add-in
  • Data exports
  • 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.

Clarksons

No use cases recorded yet. See the Clarksons review.

StormGlass

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

Where each one falls short

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

Clarksons

  • UK government contract award notice on find-tender.service.gov.uk shows a Clarkson Research Services Limited data subscription contract valued at 6,500 GBP excluding VAT (7,800 GBP including VAT) for the period 1 November 2025 to 31 October 2026

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

Clarksons

$3000/month
  • Shipping Intelligence Network$5000/month
    • Market data
    • Fleet database
    • Research reports

StormGlass

Free
  • Professional$149/month
    • 50,000 API calls
    • Historical data
    • Premium support

Which should you pick?

Choose Clarksons if

  • You need market intelligence.
  • You work on Web, Api.
  • You also want fleet database.
Clarksons 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 Clarksons or StormGlass better?
Neither clearly leads. Clarksons starts at $3000/month and StormGlass at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Clarksons or StormGlass?
StormGlass has a free tier; the other does not. Paid plans start at $3000/month for Clarksons and Free for StormGlass.
Does Clarksons or StormGlass run on more platforms?
Clarksons runs on Web, Api. StormGlass runs on Api.
Can I use StormGlass for free?
Yes. StormGlass has a free tier, so you can try it without paying. Clarksons starts at $3000/month.
What can Clarksons do that StormGlass cannot?
Clarksons covers Market intelligence, Fleet database, Freight rates, Research reports. StormGlass covers Marine weather data, Wave forecasts, Tide data, Historical weather. Both handle Api support.
ShareXLinkedInRedditWhatsAppEmail

Related pages

More on Clarksons

More on StormGlass

Keep looking

Other head to heads