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Isabelle pricing

1 plan read from isabelle.in.tum.de

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IsabelleFree Distributed for free · open-source licenses, with the main code-base subject to BSD-style regulations Read 30 Sep 2026 · isabelle.in.tum.de

In short

Isabelle has a free plan (Isabelle).

What the alternatives costAll alternatives →

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