Software · head to head
ChartCo vs Dataloy
The short version
- Each has a real cost: ChartCo requires specialized maritime knowledge to fully utilize features; Dataloy dataloy has been rebranded as Sedna VMS ("Sedna Trade Voyage Management System (Dataloy)"); its own site publishes no pricing and every plan action is a Request a demo button, per Sedna's own site.
- They diverge on capability: ChartCo covers Chart management, Dataloy covers Voyage planning.
Where they differ
Only the attributes on which ChartCo and Dataloy actually diverge.
Identical on both: pricing model (subscription), 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 ChartCo
- Chart management
- Publication updates
- Compliance tracking
- Fleet administration
- ECDIS
- Fleet management systems
- Procurement
Only in Dataloy
- Voyage planning
- Operations management
- Demurrage calculation
- Bunker planning
- ERP systems
- Accounting
- Market data
Both cover
- Web support
- Windows 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
Dataloy
- Dataloy has been rebranded as Sedna VMS ("Sedna Trade Voyage Management System (Dataloy)"); its own site publishes no pricing and every plan action is a Request a demo button, per Sedna's own site.
Pricing, plan by plan
ChartCo
$300/month- OneOcean$600/month
- Chart management
- Publications
- Compliance tracking
Dataloy
$1500/month- VMS Pro$3000/month
- Voyage planning
- Operations
- Demurrage
Which should you pick?
Choose ChartCo if
- You need chart management.
- You work on Web, Desktop.
- You also want publication updates.
Choose Dataloy if
- You need voyage planning.
- You work on Web, Windows.
- You also want operations management.
Questions people ask
- Is ChartCo or Dataloy better?
- Neither clearly leads. ChartCo starts at $300/month and Dataloy at $1500/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, ChartCo or Dataloy?
- ChartCo starts at $300/month and Dataloy at $1500/month.
- Does ChartCo or Dataloy run on more platforms?
- ChartCo runs on Web, Desktop. Dataloy runs on Web, Windows.
- What can ChartCo do that Dataloy cannot?
- ChartCo covers Chart management, Publication updates, Compliance tracking, Fleet administration. Dataloy covers Voyage planning, Operations management, Demurrage calculation, Bunker planning. Both handle Web support, Windows 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.
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.
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.


