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Maritime · head to head

Danaos vs StormGlass

Danaos logo

Danaos

Maritime

Ship management suite covering purchasing, maintenance, crewing and safety in one database

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: Danaos sales, implementation and support are concentrated in Greece and Cyprus, so an owner elsewhere gets a thinner local bench and has to rely on remote support across time zones.; StormGlass the free tier allows 10 API requests per day and is not licensed for commercial use
  • They diverge on capability: Danaos covers Planned maintenance, StormGlass covers Marine weather data.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Danaos and StormGlass actually diverge.

Attributes where Danaos and StormGlass differ
AttributeDanaosStormGlass
Starting priceOn requestFree
Pricing modelquotefreemium
Free tierNoYes
PlatformsWindows, Web, On-premiseApi
FoundedUnknown2017

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 Danaos

  • Planned maintenance
  • Purchasing
  • Inventory
  • Crewing
  • Safety and quality
  • Dry-docking
  • Budgeting
  • Ship to shore replication

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.

Danaos

  • A Greek or Cypriot owner replacing a mix of legacy planned maintenance and purchasing systems with one databasenot StormGlass
  • A third-party ship manager that must report vessel operating expenditure to multiple owners in a consistent structurenot StormGlass
  • An owner whose procurement and maintenance data never reconcile because they sit in separate productsnot StormGlass
  • A fleet needing full function on board when the satellite link is slow or intermittentnot StormGlass

StormGlass

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

Where each one falls short

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

Danaos

  • Sales, implementation and support are concentrated in Greece and Cyprus, so an owner elsewhere gets a thinner local bench and has to rely on remote support across time zones.
  • The suite is configuration-heavy, and a superintendent generally cannot change a maintenance form or approval route without vendor involvement, which turns small changes into chargeable requests.
  • The architecture is traditional, with vessel-side installations replicating to shore, so the browser experience trails newer cloud entrants and IT carries software to maintain on every ship.
  • Public documentation and product information are sparse, so a buyer cannot evaluate the product independently and is dependent on vendor demonstrations and reference calls.
  • Because everything shares one database, partial adoption gives away most of the benefit and replacing a single module later means unpicking the whole suite rather than swapping a component.

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

Danaos

On request
  • WAVES$undefined/year
    • Quoted by fleet size and modules licensed
    • Vessel installations and shore server scoped separately
    • Implementation, data migration and training charged as services

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 Danaos if

  • You need planned maintenance.
  • You work on Windows, Web, On-premise.
  • You also want purchasing.
Danaos 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 Danaos or StormGlass better?
Neither clearly leads. Danaos 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, Danaos or StormGlass?
StormGlass has a free tier; the other does not. Paid plans start at On request for Danaos and Free for StormGlass.
Does Danaos or StormGlass run on more platforms?
Danaos runs on Windows, Web, On-premise. StormGlass runs on Api.
Can I use StormGlass for free?
Yes. StormGlass has a free tier, so you can try it without paying. Danaos starts at On request.
What is Danaos best used for?
Danaos is most often used for a greek or cypriot owner replacing a mix of legacy planned maintenance and purchasing systems with one database, a third-party ship manager that must report vessel operating expenditure to multiple owners in a consistent structure, an owner whose procurement and maintenance data never reconcile because they sit in separate products, a fleet needing full function on board when the satellite link is slow or intermittent. Of those, a greek or cypriot owner replacing a mix of legacy planned maintenance and purchasing systems with one database and a third-party ship manager that must report vessel operating expenditure to multiple owners in a consistent structure are not what StormGlass is typically brought in for.
What can Danaos do that StormGlass cannot?
Danaos covers Planned maintenance, Purchasing, Inventory, Crewing. StormGlass covers Marine weather data, Wave forecasts, Tide data, Historical weather.

Answered from the vendors’ own pages

Danaos: Is this the same company as the listed shipowner Danaos Corporation?

No. Danaos Management Consultants is the software business and a separate entity, although the names are shared and both are based in Piraeus.

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
Danaos: Does it run on board with poor connectivity?

Yes. Vessels run local installations that replicate to shore, which is a deliberate design choice for constrained satellite links.

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
Danaos: Can I license only the planned maintenance module?

Technically yes, but the value comes from the shared database linking maintenance, purchasing and budgets, so partial adoption is uncommon.

StormGlass: Is annual billing available?

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

Source
Danaos: Is pricing published?

No. Everything is quoted by fleet size and by the modules licensed.

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