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Maritime · head to head

StormGlass vs Wartsila Fleet Operations Solution

StormGlass logo

StormGlass

Maritime

Global weather data API for maritime

From
Free
Rated
-
Full reviewWebsite
Wartsila Fleet Operations Solution logo

Wartsila Fleet Operations Solution

Maritime

Integrated voyage planning, fleet performance and compliance reporting for shipowners

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only StormGlass has a free tier, so it costs nothing to try first.
  • Each has a real cost: StormGlass the free tier allows 10 API requests per day and is not licensed for commercial use; Wartsila Fleet Operations Solution wartsila Cloud Manager Service 1.0 expires on 30 September 2026 and vessels not migrated to WCMS 2.0 lose FOS connectivity and live dashboards, which makes migration a mandatory fleet project with a fixed deadline.
  • They diverge on capability: StormGlass covers Marine weather data, Wartsila Fleet Operations Solution covers Route planning.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which StormGlass and Wartsila Fleet Operations Solution actually diverge.

Attributes where StormGlass and Wartsila Fleet Operations Solution differ
AttributeStormGlassWartsila Fleet Operations Solution
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
PlatformsApiWeb, Windows, Onboard
Founded2017Unknown

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 StormGlass

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

Only in Wartsila Fleet Operations Solution

  • Route planning
  • Weather optimisation
  • Fleet performance monitoring
  • Compliance reporting
  • Vessel to shore data
  • Hull and machinery module
  • Voyage Optimiser
  • Wartsila navigation integration

What people use each for

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

StormGlass

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

Wartsila Fleet Operations Solution

  • A fleet needing CII scenario comparison before fixing a voyage rather than discovering the rating after itnot StormGlass
  • A shipowner already running Wartsila ECDIS and bridge systems who wants performance data without a second onboard installationnot StormGlass
  • Consolidating EU MRV and IMO DCS reporting from noon reports and automated data into one submission workflownot StormGlass
  • Timing hull cleaning from measured performance degradation instead of a fixed drydock intervalnot StormGlass

Where each one falls short

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

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

Wartsila Fleet Operations Solution

  • Wartsila Cloud Manager Service 1.0 expires on 30 September 2026 and vessels not migrated to WCMS 2.0 lose FOS connectivity and live dashboards, which makes migration a mandatory fleet project with a fixed deadline.
  • No pricing is published, and per-vessel rates vary by module selection, so fleet budget comparison against ZeroNorth, StormGeo or Nautilus requires a quote for every configuration.
  • Value is highest where Wartsila navigation hardware is already installed; on a mixed-vendor bridge the integration advantage largely disappears and a software-only competitor may fit better.
  • Data quality depends on onboard sensing and satellite bandwidth, so vessels reliant on manual noon reports get slower and coarser insight than the platform is capable of.
  • Wartsila Voyage has been through repeated organisational restructuring, so long-term product line continuity is a reasonable question to raise before signing a multi-year fleet agreement.

Pricing, plan by plan

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

Wartsila Fleet Operations Solution

On request
  • Fleet Operations Solution$undefined/year
    • Priced per vessel per year with fleet-level discounts
    • Module selection such as compliance, hull and machinery, and voyage optimisation affects the rate
    • Onboard installation and commissioning quoted per vessel

Which should you pick?

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

Choose Wartsila Fleet Operations Solution if

  • You need route planning.
  • You work on Web, Windows, Onboard.
  • You also want weather optimisation.
Wartsila Fleet Operations Solution review

Questions people ask

Is StormGlass or Wartsila Fleet Operations Solution better?
Neither clearly leads. StormGlass starts at Free and Wartsila Fleet Operations Solution at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, StormGlass or Wartsila Fleet Operations Solution?
StormGlass has a free tier; the other does not. Paid plans start at Free for StormGlass and On request for Wartsila Fleet Operations Solution.
Does StormGlass or Wartsila Fleet Operations Solution run on more platforms?
StormGlass runs on Api. Wartsila Fleet Operations Solution runs on Web, Windows, Onboard.
Can I use StormGlass for free?
Yes. StormGlass has a free tier, so you can try it without paying. Wartsila Fleet Operations Solution starts at On request.
What is StormGlass best used for?
StormGlass is most often used for pulling marine weather and sea state forecasts into a vessel routing or planning tool, adding tide, wave and wind data to a maritime or coastal application. Of those, pulling marine weather and sea state forecasts into a vessel routing or planning tool and adding tide, wave and wind data to a maritime or coastal application are not what Wartsila Fleet Operations Solution is typically brought in for.
What can StormGlass do that Wartsila Fleet Operations Solution cannot?
StormGlass covers Marine weather data, Wave forecasts, Tide data, Historical weather. Wartsila Fleet Operations Solution covers Route planning, Weather optimisation, Fleet performance monitoring, Compliance reporting.

Answered from the vendors’ own pages

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
Wartsila Fleet Operations Solution: What happens on 30 September 2026?

Wartsila Cloud Manager Service 1.0 expires. Vessels not migrated to WCMS 2.0 lose FOS connectivity, real-time data and dashboards.

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
Wartsila Fleet Operations Solution: Does FOS require Wartsila bridge hardware?

No, but the integration benefit that distinguishes it from software-only voyage platforms depends on it.

StormGlass: Is annual billing available?

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

Source
Wartsila Fleet Operations Solution: Does it handle CII and EU MRV?

Yes, including scenario comparison before a voyage rather than reporting after it.

Wartsila Fleet Operations Solution: How is it priced?

Per vessel per year, varying by module selection. Wartsila does not publish rates.

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