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Comparison · SCADA software

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

IgnitionvsSIMATIC WinCC Open Architecture

Ignition ranks higher in our list of SCADA software (#1 against #2, score 93.5 against 90.5).

Choose Ignition if you want

Full-featured SCADA with unlimited tags per server.

Unlimited tags and clients per server, with web clients and a free Maker Edition for non-commercial use. Production use needs a paid license per server, and support plans add an annual fee.

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 Ignition runs on macOS.
  • Only SIMATIC WinCC Open Architecture runs on iOS.
  • Only SIMATIC WinCC Open Architecture runs on Android.
  • Ignition can be used for free; SIMATIC WinCC Open Architecture requires payment.

Side by side

IgnitionSIMATIC WinCC Open Architecture
Score93.590.5
Rank in list#1 of 6#2 of 6
PriceFree plan, paid upgradesFree Maker Edition for non-commercial use; paid perpetual licenses per serverContact for pricingLicensed by server size and active connections; no prices on the product page
Free to useYesNo
Open sourceNoNo
PlatformsWindowsmacOSLinuxWindows, macOS, LinuxWindowsLinuxiOSAndroidWindows, Linux, iOS, Android
Made byInductive AutomationSiemens
License modelPer server, unlimited tags and clientsServer size and active connections
Web clientYesYes
ProtocolsOPC UA, MQTT, SQLOPC UA, MQTT, IEC 104
Best forFull-featured SCADA with unlimited tags per serverLarge Siemens-based plants with mixed OS servers
Strengths
  • Unlimited tags, users and devices per server license
  • Free Maker Edition for personal and non-commercial work
  • Web clients served from the gateway
  • Windows and Linux systems in one project
  • Native iOS and Android clients
  • Redundant high-end system design
Limits
  • Production use needs a paid license per server
  • Annual support plans add a recurring cost
  • License terms depend on I/O and connection counts
  • No prices or trial terms on the product page
LinksVisit site Visit site

Questions about Ignition vs SIMATIC WinCC Open Architecture

Is Ignition better than SIMATIC WinCC Open Architecture?
Ignition ranks higher in our list of SCADA software (#1 against #2, score 93.5 against 90.5). Ignition is best for: full-featured SCADA with unlimited tags per server. SIMATIC WinCC Open Architecture is best for: large Siemens-based plants with mixed OS servers.
Which is cheaper, Ignition or SIMATIC WinCC Open Architecture?
Ignition: Free Maker Edition for non-commercial use; paid perpetual licenses per server. SIMATIC WinCC Open Architecture: Licensed by server size and active connections; no prices on the product page.
Do Ignition and SIMATIC WinCC Open Architecture run on the same platforms?
Ignition supports Windows, macOS, Linux. SIMATIC WinCC Open Architecture supports Windows, Linux, iOS, Android.