Apalache vs Lean
| Apalache | Lean | |
|---|---|---|
| Free plan | Yes | |
| Free trial | No | |
| Paid from | Free | |
| Platforms | Linux, macOS, Web, Windows | |
| Verification method | symbolic | deductive |
| Supported formalisms | invariants | theorem-proving |
| Counterexamples | Yes | |
| Input languages | TLA+, Quint | Lean 4 |
| Deployment | self-hosted | both |
| Proof artifacts | Yes |
Listed together in Best Formal Verification Tools