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Maritime & Shipping · head to head

ChartCo vs Weathernews Inc

ChartCo logo

ChartCo

Maritime & Shipping

Integrated maritime compliance platform

From
$300/month
Rated
-
Full reviewWebsite
Weathernews Inc logo

Weathernews Inc

Weather & Environment

Global weather solutions for shipping

From
$600/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ChartCo requires specialized maritime knowledge to fully utilize features; Weathernews Inc primarily Japan-based with headquarters in Chiba, may have lower coverage in certain regional markets outside Asia
  • They diverge on capability: ChartCo covers Chart management, Weathernews Inc covers Optimum ship routing.

Where they differ

Only the attributes on which ChartCo and Weathernews Inc actually diverge.

Attributes where ChartCo and Weathernews Inc differ
AttributeChartCoWeathernews Inc
Starting price$300/month$600/month
PlatformsWeb, DesktopWeb, Api, Mobile
CategoryMaritime & ShippingWeather & Environment
Founded19981986

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated).

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 ChartCo

  • Chart management
  • Publication updates
  • Compliance tracking
  • Fleet administration
  • ECDIS
  • Fleet management systems
  • Procurement
  • Windows support

Only in Weathernews Inc

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

Both cover

  • Web support

Where each one falls short

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

ChartCo

  • Requires specialized maritime knowledge to fully utilize features
  • High cost for maritime-specific software

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

ChartCo

$300/month
  • OneOcean$600/month
    • Chart management
    • Publications
    • Compliance tracking

Weathernews Inc

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

Which should you pick?

Choose ChartCo if

  • You need chart management.
  • You work on Web, Desktop.
  • You also want publication updates.
ChartCo 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 ChartCo or Weathernews Inc better?
Neither clearly leads. ChartCo starts at $300/month and Weathernews Inc at $600/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ChartCo or Weathernews Inc?
ChartCo starts at $300/month and Weathernews Inc at $600/month.
Does ChartCo or Weathernews Inc run on more platforms?
ChartCo runs on Web, Desktop. Weathernews Inc runs on Web, Api, Mobile.
What can ChartCo do that Weathernews Inc cannot?
ChartCo covers Chart management, Publication updates, Compliance tracking, Fleet administration. Weathernews Inc covers Optimum ship routing, Weather forecasting, Voyage planning, Risk assessment. Both handle Web support.

Answered from the vendors’ own pages

ChartCo: What does ChartCo OneOcean provide?

ChartCo OneOcean is an integrated maritime software platform that combines electronic navigational charts, publications, weather data, and compliance tools for voyage planning and maritime safety.

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
ChartCo: How many vessels use ChartCo PassageManager?

ChartCo's PassageManager software is used by approximately 6,500 vessels worldwide for passage planning and navigational chart management.

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
ChartCo: Does ChartCo help with environmental compliance?

Yes, ChartCo OneOcean includes EnviroManager for compliance with MARPOL and regional environmental regulations, helping crews manage waste and minimize discharge risks.

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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