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Software · head to head

Navis N4 vs Weathernews Inc

Navis N4 logo

Navis N4

Software

Terminal operating system

From
$50000/year
Rated
-
Full reviewWebsite
Weathernews Inc logo

Weathernews Inc

Software

Global weather solutions for shipping

From
$600/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Navis N4 navis N4 is now marketed under Kaleris (the site redirects there); pricing is not published, the page only offers contact/demo requests; Weathernews Inc primarily Japan-based with headquarters in Chiba, may have lower coverage in certain regional markets outside Asia
  • They diverge on capability: Navis N4 covers Vessel planning, Weathernews Inc covers Optimum ship routing.

Where they differ

Only the attributes on which Navis N4 and Weathernews Inc actually diverge.

Attributes where Navis N4 and Weathernews Inc differ
AttributeNavis N4Weathernews Inc
Starting price$50000/year$600/month
Pricing modelone-timesubscription
PlatformsWeb, Windows, ApiWeb, Api, Mobile
Founded19881986

Identical on both: free tier (No), 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 Navis N4

  • Vessel planning
  • Yard management
  • Gate operations
  • Equipment management
  • Port community systems
  • Customs
  • Shipping lines
  • Windows support

Only in Weathernews Inc

  • Optimum ship routing
  • Weather forecasting
  • Voyage planning
  • Risk assessment
  • Fleet management
  • Bridge systems
  • Navigation software
  • Mobile support

Both cover

  • Web support
  • Api support

Where each one falls short

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

Navis N4

  • Navis N4 is now marketed under Kaleris (the site redirects there); pricing is not published, the page only offers contact/demo requests

Weathernews Inc

  • Primarily Japan-based with headquarters in Chiba, may have lower coverage in certain regional markets outside Asia
  • Marine weather data and aviation services are newer offerings compared to core weather forecasting capabilities
  • Competition from established European weather services in maritime sector

Pricing, plan by plan

Navis N4

$50000/year
  • Professional$100000/year
    • Full TOS
    • Optimization
    • Analytics

Weathernews Inc

$600/month
  • Optimum Routing$1500/month
    • Weather routing
    • Voyage optimization
    • 24/7 support

Which should you pick?

Choose Navis N4 if

  • You need vessel planning.
  • You work on Web, Windows, Api.
  • You also want yard management.
Navis N4 review

Choose Weathernews Inc if

  • You need optimum ship routing.
  • You work on Web, Api, Mobile.
  • You also want weather forecasting.
Weathernews Inc review

Questions people ask

Is Navis N4 or Weathernews Inc better?
Neither clearly leads. Navis N4 starts at $50000/year and Weathernews Inc at $600/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Navis N4 or Weathernews Inc?
Navis N4 starts at $50000/year and Weathernews Inc at $600/month.
Does Navis N4 or Weathernews Inc run on more platforms?
Navis N4 runs on Web, Windows, Api. Weathernews Inc runs on Web, Api, Mobile.
What can Navis N4 do that Weathernews Inc cannot?
Navis N4 covers Vessel planning, Yard management, Gate operations, Equipment management. Weathernews Inc covers Optimum ship routing, Weather forecasting, Voyage planning, Risk assessment. Both handle Web support, Api support.

Answered from the vendors’ own pages

Weathernews Inc: Does Weathernews provide marine weather data?

Yes. Weathernews provides wind, wave, current, sea ice, and typhoon information for global marine operations through its SeaNavigator platform, which launched SeaNavigator for Master in December 2025 with AI-assisted operations support.

Source
Weathernews Inc: What marine weather products does Weathernews offer?

Weathernews offers SeaNavigator Marine Weather Service, SeaNavigator for Master with conversational AI for captains, and marine data for Middle East waters made available free of charge in April 2026.

Source
Weathernews Inc: Does Weathernews serve the aviation industry?

Yes. Weathernews expanded aviation services with the December 2025 launch of SkyAviators, offering Global Aviation Weather Intelligence with turbulence risk assessments and takeoff/landing feasibility judgments for airports worldwide.

Source
Weathernews Inc: What was Weathernews founded in response to?

Weathernews was founded on June 11, 1986 by Hiro Ishibashi in response to a tragic maritime disaster where a cargo vessel sank at the port of Onahama, Japan with 15 crew members lost, demonstrating the need for better weather information.

Source
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