Best STEPP Alternatives in 2026
Updated
20 apps from physics simulation software ranked against STEPP on the same published basis.
- 1STEPP vs Open Source Physics
- 2STEPP vs SimFlow
- 3STEPP vs Algodoo
- 4STEPP vs OpenSim
- 5STEPP vs myPhysicsLab
- 6STEPP vs COMSOL Multiphysics
- 7STEPP vs SimScale
- 8STEPP vs Ansys Fluent
- 9STEPP vs OpenFOAM
- 10STEPP vs Xcos
- 11STEPP vs FEATool Multiphysics
- 12STEPP vs 3JCN Physics Simulation
- 13STEPP vs ASCEND
- 14STEPP vs ngspice
- 15STEPP vs SimEvents
- 16STEPP vs Step
- 17STEPP vs PhysSandbox
- 18STEPP vs Interactive Physics
- 19STEPP vs PhysicsPlayground
- 20STEPP vs oPhysics
STEPP alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Open Source Physics | 8.3 | No | — | Web, Windows, Mac, Linux, iOS, Android |
| 2 | SimFlow | 7.9 | Free plan | €666.67/mo | Linux, Mac, Web, Windows |
| 3 | Algodoo | 7.9 | No | — | Windows, Mac, iOS |
| 4 | OpenSim | 7.7 | Free plan | Free | API, Linux, Mac, Windows |
| 5 | myPhysicsLab | 7.6 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 6 | COMSOL Multiphysics | 7.5 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 7 | SimScale | 7.5 | No | — | Web |
| 8 | Ansys Fluent | 7.4 | No | — | — |
| 9 | OpenFOAM | 7.0 | No | — | Windows, Mac, Linux |
| 10 | Xcos | 7.0 | Free plan | Free | Windows, Mac, Linux |
| 11 | FEATool Multiphysics | 6.9 | No | — | Windows, Linux, Mac |
| 12 | 3JCN Physics Simulation | 6.8 | Free plan | Free | Web |
| 13 | ASCEND | 6.5 | No | — | Windows, Mac, Linux |
| 14 | ngspice | 6.4 | No | — | Windows, Mac, Linux |
| 15 | SimEvents | 6.4 | No | — | — |
| 16 | Step | 6.4 | No | — | Linux |
| 17 | PhysSandbox | 6.4 | Free plan | Free | Web |
| 18 | Interactive Physics | 6.3 | No | — | Windows, Mac |
| 19 | PhysicsPlayground | 6.3 | Free plan | Free | Web |
| 20 | oPhysics | 6.2 | No | — | Web |
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Questions about STEPP alternatives
What is the best alternative to STEPP?
Open Source Physics, number 1 in physics simulation software with a score of 8.3 out of 10. The others here: SimFlow, Algodoo, OpenSim and 16 more.
What is the best free alternative to STEPP?
SimFlow is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.