Specifiction
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
List your tool
Vendor dashboard

Best PRISM Alternatives in 2026

Updated

20 tools from formal verification tools ranked against PRISM on the same published basis.

  1. 1
    Lean Free plan LinuxMacWebWin Free7.5
    PRISM vs Lean
  2. 2
    PVS Free plan LinuxMacWin Free7.5
    PRISM vs PVS
  3. 3
    Rocq Free plan extensionLinuxMacWebWin Free7.5
    PRISM vs Rocq
  4. 4
    Z3 Free plan AndroidapiLinuxMacself-hosted Free7.4
    PRISM vs Z3
  5. 5
    HOL4 Free plan LinuxMacself-hostedWin Free7.3
    PRISM vs HOL4
  6. 6
    Alloy Analyzer Free plan apiLinuxMacWin Free7.2
    PRISM vs Alloy Analyzer
  7. 7
    NuSMV Free plan LinuxMacWin Free7.2
    PRISM vs NuSMV
  8. 8
    UPPAAL Free plan LinuxMacWin Free7.2
    PRISM vs UPPAAL
  9. 9
    CBMC Free plan LinuxMacself-hostedWin Free7.1
    PRISM vs CBMC
  10. 10
    CPAchecker Free plan LinuxMacself-hostedWin Free7.1
    PRISM vs CPAchecker
  11. 11
    HOL Light LinuxMacself-hostedWebWin 7.1
    PRISM vs HOL Light
  12. 12
    Isabelle Free plan LinuxMacself-hostedWin Free7.1
    PRISM vs Isabelle
  13. 14
    SPIN Free plan LinuxMacWin Free7.1
    PRISM vs SPIN
  14. 15
    ACL2 LinuxMacself-hostedWin 7.0
    PRISM vs ACL2
  15. 16
    Viper extensionLinuxMacWebWin 7.0
    PRISM vs Viper
  16. 17
    Frama-C LinuxMacWin 6.9
    PRISM vs Frama-C
  17. 18
    Stainless LinuxMacWin 6.9
    PRISM vs Stainless
  18. 19
    Dafny LinuxMacself-hostedWin 6.8
    PRISM vs Dafny
  19. 20
    K Framework apiLinuxMacself-hosted 6.8
    PRISM vs K Framework
  20. 21
    Ultimate Automizer LinuxWebWin 6.7
    PRISM vs Ultimate Automizer

PRISM alternatives compared

#ToolScoreFree planFromRuns on
1Lean7.5Free planFreeLinux, Mac, Web, Windows
2PVS7.5Free planFreeLinux, Mac, Windows
3Rocq7.5Free planFreeBrowser, Linux, Mac, Web, Windows
4Z37.4Free planFreeAndroid, API, Linux, Mac, self-hosted, Web, Windows
5HOL47.3Free planFreeLinux, Mac, self-hosted, Windows
6Alloy Analyzer7.2Free planFreeAPI, Linux, Mac, Windows
7NuSMV7.2Free planFreeLinux, Mac, Windows
8UPPAAL7.2Free planFreeLinux, Mac, Windows
9CBMC7.1Free planFreeLinux, Mac, self-hosted, Windows
10CPAchecker7.1Free planFreeLinux, Mac, self-hosted, Windows
11HOL Light7.1No—Linux, Mac, self-hosted, Web, Windows
12Isabelle7.1Free planFreeLinux, Mac, self-hosted, Windows
14SPIN7.1Free planFreeLinux, Mac, Windows
15ACL27.0No—Linux, Mac, self-hosted, Windows
16Viper7.0No—Browser, Linux, Mac, Web, Windows
17Frama-C6.9No—Linux, Mac, Windows
18Stainless6.9No—Linux, Mac, Windows
19Dafny6.8No—Linux, Mac, self-hosted, Windows
20K Framework6.8No—API, Linux, Mac, self-hosted
21Ultimate Automizer6.7No—Linux, Web, Windows
Make your tool an alternative to PRISM

The sponsored alternative slot on this page is labelled Sponsored.

See the price

Questions about PRISM alternatives

What is the best alternative to PRISM?

Lean, number 1 in formal verification tools with a score of 7.5 out of 10. The others here: PVS, Rocq, Z3 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 on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.