Lean
6.9#1 in formal verification toolsFree planFree planWebLinuxmacOSWindows
VisitLean vs UPPAAL
What both publish
| Fact | Lean | UPPAAL |
|---|---|---|
| Founded | 2013 | 1995 |
| Support | The Lean Community Zulip is described as the central hub for questions and collaboration, and Lean FRO hosts weekly technical office hours. | Academic support is community-based, with documentation, discussions, mailing lists, and Stack Overflow; the team says it may be unable to answer all direct requests. |
Lean plans
- Lean 4Free
UPPAAL plans
- Academic licenseFree
- Commercial licensePriced on request
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.
Pick UPPAAL if…
UPPAAL suits researchers and students modeling or verifying timing-critical systems, particularly real-time controllers and communication protocols. Commercial, private, and other non-academic users need commercial licensing.