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HOL4 pricing

1 plan read from hol-theorem-prover.org

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HOL4Free Free software under the Modified (3-clause) BSD licence Read 8 Oct 2026 · hol-theorem-prover.org

In short

HOL4 has a free plan (HOL4).

What the alternatives costAll alternatives →

Tool	From	Free plan	Free trial
cvc5	—	Yes	No
Lean	—	Yes	No
Rocq	—	Yes	No
PVS	—	Yes	No
Agda	—	No	No
Alloy Analyzer	—	Yes	No
Boogie	—	Yes	No
CBMC	—	Yes	No