Softwr

Maritime · head to head

Dataloy vs StormGlass

Dataloy logo

Dataloy

Maritime

Voyage management and operations

From
$1500/month
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: Dataloy no pricing published on website; StormGlass the free tier allows 10 API requests per day and is not licensed for commercial use
  • They diverge on capability: Dataloy covers Voyage planning, StormGlass covers Marine weather data.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Dataloy and StormGlass actually diverge.

Attributes where Dataloy and StormGlass differ
AttributeDataloyStormGlass
Starting price$1500/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, WindowsApi
Founded19872017

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 Dataloy

  • Voyage planning
  • Operations management
  • Demurrage calculation
  • Bunker planning
  • ERP systems
  • Accounting
  • Market data
  • Web support

Only in StormGlass

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

What people use each for

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

Dataloy

  • Maritime data extraction and intelligencenot StormGlass
  • Vessel tracking and voyage managementnot StormGlass
  • Commercial shipping and chartering operationsnot StormGlass
  • Port scheduling and compliance monitoringnot StormGlass
  • Real-time maritime communications analysisnot StormGlass

StormGlass

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

Where each one falls short

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

Dataloy

  • No pricing published on website
  • Requires contacting sales team for quotes
  • Custom pricing model per organization
  • No transparent pricing or trial information

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

Dataloy

$1500/month
  • VMS Pro$3000/month
    • Voyage planning
    • Operations
    • Demurrage

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 Dataloy if

  • You need voyage planning.
  • You work on Web, Windows.
  • You also want operations management.
Dataloy 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 Dataloy or StormGlass better?
Neither clearly leads. Dataloy starts at $1500/month and StormGlass at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Dataloy or StormGlass?
StormGlass has a free tier; the other does not. Paid plans start at $1500/month for Dataloy and Free for StormGlass.
Does Dataloy or StormGlass run on more platforms?
Dataloy runs on Web, Windows. StormGlass runs on Api.
Can I use StormGlass for free?
Yes. StormGlass has a free tier, so you can try it without paying. Dataloy starts at $1500/month.
What is Dataloy best used for?
Dataloy is most often used for maritime data extraction and intelligence, vessel tracking and voyage management, commercial shipping and chartering operations, port scheduling and compliance monitoring. Of those, maritime data extraction and intelligence and vessel tracking and voyage management are not what StormGlass is typically brought in for.
What can Dataloy do that StormGlass cannot?
Dataloy covers Voyage planning, Operations management, Demurrage calculation, Bunker planning. StormGlass covers Marine weather data, Wave forecasts, Tide data, Historical weather.

Answered from the vendors’ own pages

Dataloy: How much does Sedna (Dataloy) cost?

Sedna does not publish pricing on their website. Costs are custom per organization and require contacting their sales team through the Speak to the Team form or Talk to Us call-to-action.

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
Dataloy: What is Sedna's pricing model?

Sedna operates on a custom pricing model where costs are determined based on specific organizational needs, product selection, team size, and integration requirements. Contact their team for a personalized quote.

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
Dataloy: How do I request pricing from Sedna?

Submit the Speak to the Team contact form with company information, vertical market, and location. Alternatively, use the Talk to Us button or visit their contact page to connect with the sales team.

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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