F* vs Isabelle

F*

6.0 #30 in Formal Verification Tools

About F*

Isabelle

7.1 #13 in Formal Verification Tools

About Isabelle
F*Isabelle
Free planYes
Free trialNo
Paid fromFree
PlatformsWindows, Linux, macOSLinux, macOS, self-hosted, Windows
Verification methodhybriddeductive
Supported formalismstheorem-provingtheorem-proving
Input languagesF*Isabelle/Isar, Isabelle/Pure, ML; executable specifications can generate SML, OCaml, Haskell, and Scala
Deploymentself-hostedself-hosted
Free planYes
CounterexamplesYes
Proof artifactsYes

Listed together in Best Formal Verification Tools