Best PRISM Alternatives in 2026
Updated
20 apps from formal verification tools ranked against PRISM on the same published basis.
- 1PRISM vs Lean
- 2PRISM vs Rocq
- 3PRISM vs Z3
- 4PRISM vs HOL4
- 5PRISM vs PVS
- 6PRISM vs Alloy Analyzer
- 7PRISM vs CBMC
- 8PRISM vs CPAchecker
- 9PRISM vs Isabelle
- 10PRISM vs NuSMV
- 12PRISM vs SPIN
- 13PRISM vs UPPAAL
- 14PRISM vs HOL Light
- 15PRISM vs ACL2
- 16PRISM vs Dafny
- 17PRISM vs Frama-C
- 18PRISM vs Stainless
- 19PRISM vs Ultimate Automizer
- 20PRISM vs Viper
- 21PRISM vs K Framework
PRISM alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Lean | 6.7 | Free plan | Free | Linux, Mac, Web, Windows |
| 2 | Rocq | 6.7 | Free plan | Free | Browser, Linux, Mac, Web, Windows |
| 3 | Z3 | 6.7 | Free plan | Free | Android, API, Linux, Mac, self-hosted, Web, Windows |
| 4 | HOL4 | 6.6 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 5 | PVS | 6.6 | Free plan | Free | Linux, Mac, Windows |
| 6 | Alloy Analyzer | 6.5 | Free plan | Free | API, Linux, Mac, Windows |
| 7 | CBMC | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 8 | CPAchecker | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 9 | Isabelle | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 10 | NuSMV | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 12 | SPIN | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 13 | UPPAAL | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 14 | HOL Light | 5.7 | No | — | Linux, Mac, self-hosted, Web, Windows |
| 15 | ACL2 | 5.6 | No | — | Linux, Mac, self-hosted, Windows |
| 16 | Dafny | 5.6 | No | — | Linux, Mac, self-hosted, Windows |
| 17 | Frama-C | 5.6 | No | — | Linux, Mac, Windows |
| 18 | Stainless | 5.6 | No | — | Linux, Mac, Windows |
| 19 | Ultimate Automizer | 5.6 | No | — | Linux, Web, Windows |
| 20 | Viper | 5.6 | No | — | Browser, Linux, Mac, Web, Windows |
| 21 | K Framework | 5.5 | No | — | API, Linux, Mac, self-hosted |
Make your app an alternative to PRISM
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about PRISM alternatives
What is the best alternative to PRISM?
Lean, number 1 in formal verification tools with a score of 6.7 out of 10. The others here: Rocq, Z3, HOL4 and 16 more.
What is the best free alternative to PRISM?
Lean is the best-ranked alternative with a free plan. 12 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.