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Maritime · head to head

Alphaliner vs Sea Machines

Alphaliner logo

Alphaliner

Maritime

Container shipping data and analysis

From
$800/month
Rated
-
Full reviewWebsite
Sea Machines logo

Sea Machines

Maritime

Autonomous vessel control systems

From
$50000/one-time
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Alphaliner now delivered through AXSMarine rather than independently, and alphaliner.com redirects there; Sea Machines requires hardware fitted to the vessel; the autonomy systems are retrofits or new build installations rather than a software purchase
  • They diverge on capability: Alphaliner covers Fleet database, Sea Machines covers Autonomous control.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Alphaliner and Sea Machines actually diverge.

Attributes where Alphaliner and Sea Machines differ
AttributeAlphalinerSea Machines
Starting price$800/month$50000/one-time
Pricing modelsubscriptionone-time
PlatformsWebEmbedded, Web, Mobile
Founded19982015

Identical on both: free tier (No), 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 Alphaliner

  • Fleet database
  • Charter rate tracking
  • Capacity analysis
  • Market reports
  • Data exports
  • Excel reports

Only in Sea Machines

  • Autonomous control
  • Remote operation
  • Collision avoidance
  • Pattern following
  • Vessel systems
  • Communication networks
  • Shore-based control
  • Embedded support

Both cover

  • Web support

What people use each for

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

Alphaliner

  • Tracking liner services and containership deploymentsnot Sea Machines
  • Port and terminal call analyticsnot Sea Machines
  • Fleet monitoring with technical and commercial vessel datanot Sea Machines
  • Suez and Panama canal traffic analysisnot Sea Machines
  • Feeding shipping data into internal systems through the API hubnot Sea Machines

Sea Machines

  • Intelligent voyage and transit autonomy for workboatsnot Alphaliner
  • Pattern autonomy for survey and repetitive route worknot Alphaliner
  • Collision avoidance using the AI-ris computer vision sensornot Alphaliner
  • Remote command and control of vessels, including in GPS denied environmentsnot Alphaliner
  • Fleet management and telemetry through Fleetviewer and the SMLINK APIsnot Alphaliner

Where each one falls short

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

Alphaliner

  • Now delivered through AXSMarine rather than independently, and alphaliner.com redirects there
  • Neither the subscription model nor any price is published
  • A market intelligence data service for shipping professionals rather than an operational tool

Sea Machines

  • Requires hardware fitted to the vessel; the autonomy systems are retrofits or new build installations rather than a software purchase
  • Targeted at vessels from 10 to 300 ft, so it does not address the largest commercial tonnage
  • Pricing is not published and is arranged directly with the vendor
  • The SM300-NG is the class-approved unit, so the cheaper SM300-SP does not carry the same approval

Pricing, plan by plan

Alphaliner

$800/month
  • Professional$1500/month
    • Fleet database
    • Charter rates
    • Weekly reports

Sea Machines

$50000/one-time
  • SM300$75000/one-time
    • Autonomous control
    • Collision avoidance
    • Remote operation

Which should you pick?

Choose Alphaliner if

  • You need fleet database.
  • You also want charter rate tracking.
Alphaliner review

Choose Sea Machines if

  • You need autonomous control.
  • You work on Embedded, Web, Mobile.
  • You also want remote operation.
Sea Machines review

Questions people ask

Is Alphaliner or Sea Machines better?
Neither clearly leads. Alphaliner starts at $800/month and Sea Machines at $50000/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Alphaliner or Sea Machines?
Alphaliner starts at $800/month and Sea Machines at $50000/one-time.
Does Alphaliner or Sea Machines run on more platforms?
Alphaliner runs on Web. Sea Machines runs on Embedded, Web, Mobile.
What is Alphaliner best used for?
Alphaliner is most often used for tracking liner services and containership deployments, port and terminal call analytics, fleet monitoring with technical and commercial vessel data, suez and panama canal traffic analysis. Of those, tracking liner services and containership deployments and port and terminal call analytics are not what Sea Machines is typically brought in for.
What can Alphaliner do that Sea Machines cannot?
Alphaliner covers Fleet database, Charter rate tracking, Capacity analysis, Market reports. Sea Machines covers Autonomous control, Remote operation, Collision avoidance, Pattern following. Both handle Web support.

Answered from the vendors’ own pages

Alphaliner: How much does Alphaliner cost?

Alphaliner does not publish pricing information on its website. Customers must book a demo or contact the sales team directly to receive a price quote tailored to their shipping and logistics needs.

Source
Sea Machines: How much does Sea Machines cost?

Pricing is not published. Sea Machines requires customers to contact their sales team directly through the Contact Us link on their website for pricing quotes tailored to specific products and use cases.

Source
Alphaliner: Does Alphaliner offer a free trial or demo?

Alphaliner offers a demo booking option to evaluate the platform. Interested users can schedule a demonstration with the Alphaliner team to explore features including service tracking, port analytics, fleet monitoring, and API integration before purchasing.

Source
Sea Machines: What is the pricing model for Sea Machines products?

Sea Machines offers autonomy systems and software solutions for maritime vessels. Pricing is determined on a per-product basis through direct sales consultation rather than published subscription tiers.

Source
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