SPIN vs TLA+
| SPIN | TLA+ | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | extension, Linux, macOS, Windows |
| Free plan | Yes | — |
| Verification method | model-checking | hybrid |
| Supported formalisms | temporal-logic | invariants |
| Counterexamples | Yes | Yes |
| Input languages | Promela | TLA+ and PlusCal |
| Deployment | self-hosted | both |
Both are listed in Best Formal Verification Tools. On Freedom251, SPIN scores higher on our published basis.