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Comparison · OPC and industrial connectivity software

Cogent DataHub vs UaExpert: which is better in 2026?

Cogent DataHub85.0#3 in best OPC and industrial connectivity softwareUaExpert70.0#6 in best OPC and industrial connectivity software

Cogent DataHub ranks higher in our list of OPC and industrial connectivity software (#3 against #6, score 85.0 against 70.0).

  • 85.0
    Editorial score
    70.0
  • 1
    Platforms
    2
  • No
    Free to use
    Yes
  • No
    Open source
    No

Which should you choose?

Choose Cogent DataHub if you want

Windows OPC and Modbus gateways on subscription.

Gateways and tunnellers for OPC, Modbus and MQTT with built-in scripting, on Windows Server. The annual subscription has a 24-month minimum term, which suits long projects more than pilots.

Choose UaExpert if you want

Testing and commissioning OPC UA servers.

A free OPC UA reference client for browsing, reading, writing and subscribing, on Windows and Linux. It is a testing tool rather than connectivity software, and plugins need keys above set limits.

The main differences

  • Only UaExpert runs on Linux.
  • UaExpert can be used for free; Cogent DataHub requires payment.

Side by side

Cogent DataHubUaExpert
Score85.070.0
Rank in list#3 of 6#6 of 6
PriceSubscriptionAnnual subscription with a 24-month minimum term; trial download availableFreeFree version; some plugins need a license key
Free to useNoYes
Open sourceNoNo
PlatformsWindowsWindowsWindowsLinuxWindows, Linux
Made bySkkynetUnified Automation
ProtocolsModbus, OPC DA and UA tunnels, MQTTOPC UA client; no device drivers
License modelAnnual subscription, 24-month minimumFree; some plugins need keys
TrialTrial downloadFree version, no trial
Best forWindows OPC and Modbus gateways on subscriptionTesting and commissioning OPC UA servers
Strengths
  • Broad OPC, Modbus and MQTT gateway set
  • Free upgrades during the subscription term
  • Built-in scripting for Windows applications
  • Free version for Windows and Linux
  • Trend View and data logger plugins
  • Browse, read, write and subscribe in one tool
Limits
  • Subscription has a 24-month minimum term
  • Windows is the only platform in its specifications
  • Client only, with no device drivers or gateway
  • Some plugins need licenses above set limits
LinksVisit site Visit site

Questions about Cogent DataHub vs UaExpert

Is Cogent DataHub better than UaExpert?
Cogent DataHub ranks higher in our list of OPC and industrial connectivity software (#3 against #6, score 85.0 against 70.0). Cogent DataHub is best for: windows OPC and Modbus gateways on subscription. UaExpert is best for: testing and commissioning OPC UA servers.
Which is cheaper, Cogent DataHub or UaExpert?
Cogent DataHub: Annual subscription with a 24-month minimum term; trial download available. UaExpert: Free version; some plugins need a license key.
Do Cogent DataHub and UaExpert run on the same platforms?
Cogent DataHub supports Windows. UaExpert supports Windows, Linux.