Alloy Analyzer vs TLA+

Alloy Analyzer

7.3 #1 in Formal Verification Tools

About Alloy Analyzer

TLA+

5.1 #27 in Formal Verification Tools

About TLA+
Alloy AnalyzerTLA+
Free planYesNo
Free trialNoNo
Paid fromFree—
Open sourceNoNo
Platformsapi, Linux, macOS, WindowsWindows, macOS, Linux
Free planYes—
Verification methodmodel-checkinghybrid
Supported formalismsinvariantsinvariants
CounterexamplesYesYes
Input languagesAlloy languageTLA+ and PlusCal
Deploymentself-hostedboth

Both are listed in Best Formal Verification Tools. On Inferse, Alloy Analyzer scores higher on our published basis.