Apalache
5.4#31 in formal verification toolsAPILinuxSelf-hosted
VisitApalache vs Lean
What both publish
| Fact | Apalache | Lean |
|---|---|---|
| License | The repository identifies Apalache as Apache-2.0 licensed. | Lean is released under the Apache 2.0 license, which the documentation describes as allowing others to use and extend the code and mathematical libraries freely. |
| Support | The site names Igor Konnov as the contact person. | The Lean Community Zulip is described as the central hub for questions and collaboration, and Lean FRO hosts weekly technical office hours. |
Apalache plans
No prices published.
Lean plans
- Lean 4Free
Pick Apalache if…
You want what its maker publishes above — check its page for the details.
Pick Lean if…
Lean suits programmers, theorem provers, and mathematicians working with formalization, proof checking, or software verification. Its general coding capability and browser version may also suit users exploring Lean before choosing a local setup.