Physion
The facts below are what the maker publishes about Physion, checked and dated. Our editors have not written about it yet.
Plans and prices
From Physion's own pricing page, checked 28 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 1 saved scene per month · ad-supported · publish and share scenes with a link · Free forever, no trial |
| Basic | $6 a month | 12 saved scenes per month · no ads · $6/mo or $60 a year |
| Pro | $10 a month | 30 saved scenes per month · no ads · premium support · $10/mo or $100 a year |
The facts
Each one read from Physion's own pages, with the date it was checked.
What it does
- 3D visuals
- Nochecked 20 Sep 2026
- Authoring tools
- Yeschecked 20 Sep 2026
- Boolean and laser tools
- The simulator provides boolean operations for combining or cutting shapes and laser rays that reflect off surfaces.checked 28 Sep 2026
- Delivery mode
- webchecked 20 Sep 2026
- Graphs and force diagrams
- Physion includes live graphs for motion, force, momentum and energy properties and free-body diagrams showing gravity, normal, friction, joint-reaction and spring forces.checked 28 Sep 2026
- JavaScript scripting
- Users can attach standard JavaScript Node Scripts to objects, handle lifecycle and collision callbacks, access the physion global and import external JavaScript libraries.checked 28 Sep 2026
- Liquid and particle simulation
- Physion simulates liquids, soft bodies and particle emitters using particle simulation.checked 28 Sep 2026
- Mobile limitation
- Phones and tablets can open, watch and interact with existing scenes, but drawing and editing tools are disabled there.checked 28 Sep 2026
- Offline access
- Nochecked 20 Sep 2026
- Offline limitation
- Physion requires an internet connection, stores saved scenes on its servers and has no offline or downloadable local app mode.checked 28 Sep 2026
- Open-source status
- The Physion app is not open source, although the physion-assets and physion-translations companion repositories are public and open to contributions.checked 28 Sep 2026
- Paid from
- 6checked 20 Sep 2026
- Security and processing
- Physics calculations run locally in the user's browser rather than on a server, and Physion says it never sees card details because Stripe handles billing.checked 28 Sep 2026
- Shape and mechanism tools
- It supports shapes including circles, rectangles, capsules, polygons, text bodies, polylines, spirals and gears, plus joints, springs and ropes.checked 28 Sep 2026
- Support
- Users can ask questions or discuss school and classroom needs on Discord, and the Pro plan includes premium support.checked 28 Sep 2026
- Target users
- The maker describes Physion for teachers, students and hobbyists building classroom demonstrations, experiments and mechanical creations.checked 28 Sep 2026
- Usage limits
- Only account scene saves are metered; building, running and opening scenes are unlimited, with the monthly save count resetting at the start of each calendar month.checked 28 Sep 2026
- What it does
- Physion is a browser-based 2D physics simulator for designing and running interactive physics experiments.checked 28 Sep 2026
Money
- Authentication and billing integrations
- Accounts use Google or Facebook sign-in, while paid subscriptions are handled through Stripe inside the app.checked 28 Sep 2026
- Free plan
- Yeschecked 20 Sep 2026
Where it runs
- Browser and installation
- Physion runs in a modern desktop browser with no download, installer, plugin or browser extension, and scenes can be shared by URL.checked 28 Sep 2026
Alternatives to Physion
- 1

SimFlow
Free planWebLinuxmacOSWindows8.2From €8,000 a year - 2

COMSOL Multiphysics
WebAPILinuxmacOS7.7 - 3
FeenoX
Free planWebAPILinuxSelf-hosted7.5Free plan - 4
myPhysicsLab
Free planWebLinuxmacOSSelf-hosted7.5Free plan - 5

OpenFOAM
Free planLinuxmacOSSelf-hostedWindows7.3Free plan - 6
MPTRAC
Free planWebLinuxSelf-hosted7.2Free plan
