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