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Comparison · SCADA software

Rapid SCADA vs SIMATIC WinCC Open Architecture: which is better in 2026?

Rapid SCADAvsSIMATIC WinCC Open Architecture

SIMATIC WinCC Open Architecture ranks higher in our list of SCADA software (#2 against #5, score 90.5 against 84.0).

Choose Rapid SCADA if you want

Free SCADA on Windows or Linux servers.

Apache 2.0 Standard edition with unlimited data points, running on Windows Server or Linux. Enterprise features need the paid license, and training or consulting are separate services.

Choose SIMATIC WinCC Open Architecture if you want

Large Siemens-based plants with mixed OS servers.

Runs on Windows and Linux in one project, with redundant server setups and native iOS and Android clients. Licensing follows server size and connections, and the site shows no prices or trial.

The main differences

  • Only SIMATIC WinCC Open Architecture runs on iOS.
  • Only SIMATIC WinCC Open Architecture runs on Android.
  • Rapid SCADA is open source; SIMATIC WinCC Open Architecture is not.
  • Rapid SCADA can be used for free; SIMATIC WinCC Open Architecture requires payment.

Side by side

Rapid SCADASIMATIC WinCC Open Architecture
Score84.090.5
Rank in list#5 of 6#2 of 6
PriceFree and open sourceStandard edition free under Apache 2.0; Enterprise license is paidContact for pricingLicensed by server size and active connections; no prices on the product page
Free to useYesNo
Open sourceYesNo
PlatformsWindowsLinuxWindows, LinuxWindowsLinuxiOSAndroidWindows, Linux, iOS, Android
Made byNot statedSiemens
License modelApache 2.0 Standard; paid EnterpriseServer size and active connections
Web clientYesYes
ProtocolsModbus driver; other modulesOPC UA, MQTT, IEC 104
Best forFree SCADA on Windows or Linux serversLarge Siemens-based plants with mixed OS servers
Strengths
  • Unlimited data points in the free edition
  • Windows Server and Linux server support
  • Modules can carry their own licenses
  • Windows and Linux systems in one project
  • Native iOS and Android clients
  • Redundant high-end system design
Limits
  • Enterprise features need a paid license
  • Training and consulting are sold as separate services
  • License terms depend on I/O and connection counts
  • No prices or trial terms on the product page
LinksVisit site Visit site

Questions about Rapid SCADA vs SIMATIC WinCC Open Architecture

Is SIMATIC WinCC Open Architecture better than Rapid SCADA?
SIMATIC WinCC Open Architecture ranks higher in our list of SCADA software (#2 against #5, score 90.5 against 84.0). Rapid SCADA is best for: free SCADA on Windows or Linux servers. SIMATIC WinCC Open Architecture is best for: large Siemens-based plants with mixed OS servers.
Which is cheaper, Rapid SCADA or SIMATIC WinCC Open Architecture?
Rapid SCADA: Standard edition free under Apache 2.0; Enterprise license is paid. SIMATIC WinCC Open Architecture: Licensed by server size and active connections; no prices on the product page.
Do Rapid SCADA and SIMATIC WinCC Open Architecture run on the same platforms?
Rapid SCADA supports Windows, Linux. SIMATIC WinCC Open Architecture supports Windows, Linux, iOS, Android.