Best Walter Fendt Apps on Physics Alternatives in 2026

Updated October 2026

20 apps from physics simulation software ranked against Walter Fendt Apps on Physics on the same published basis.

1
OpenSim Free plan apiLinuxMacWin Free9.1
Walter Fendt Apps on Physics vs OpenSim
2
SimFlow Free plan LinuxMacWebWin €666.67/mo9.1
Walter Fendt Apps on Physics vs SimFlow
3
ngspice Free plan LinuxMacself-hostedWin Free8.8
Walter Fendt Apps on Physics vs ngspice
4
FeenoX Free plan apiLinuxself-hostedWeb Free8.8
Walter Fendt Apps on Physics vs FeenoX
5
COMSOL Multiphysics Free trial apiLinuxMacself-hostedWeb 8.7
Walter Fendt Apps on Physics vs COMSOL Multiphysics
6
Xcos Free plan WinMacLinux Free8.7
Walter Fendt Apps on Physics vs Xcos
7
FEST-3D Free plan LinuxMac Free8.7
Walter Fendt Apps on Physics vs FEST-3D
8
MPTRAC Free plan Linuxself-hostedWeb Free8.6
Walter Fendt Apps on Physics vs MPTRAC
9
myPhysicsLab Free plan LinuxMacself-hostedWebWin Free8.6
Walter Fendt Apps on Physics vs myPhysicsLab
10
Open Source Physics WebWinMacLinuxiOS 8.5
Walter Fendt Apps on Physics vs Open Source Physics
11
FDTDX Free plan Linuxself-hosted Free8.5
Walter Fendt Apps on Physics vs FDTDX
12
DynamicalSystems.jl Free plan LinuxMacWin Free8.5
Walter Fendt Apps on Physics vs DynamicalSystems.jl
13
SimScale Web 8.4
Walter Fendt Apps on Physics vs SimScale
14
Ansys Fluent 8.1
Walter Fendt Apps on Physics vs Ansys Fluent
15
OpenFOAM WinMacLinux 8.1
Walter Fendt Apps on Physics vs OpenFOAM
16
pyuvsim LinuxMacWin 8.0
Walter Fendt Apps on Physics vs pyuvsim
17
VaMPy Free plan LinuxMacself-hostedWin Free8.0
Walter Fendt Apps on Physics vs VaMPy
18
PyAutoLens Free plan LinuxMacWin Free8.0
Walter Fendt Apps on Physics vs PyAutoLens
19
FEATool Multiphysics WinLinuxMac 7.8
Walter Fendt Apps on Physics vs FEATool Multiphysics
20
Kinetic.jl apiLinux 7.8
Walter Fendt Apps on Physics vs Kinetic.jl

Walter Fendt Apps on Physics alternatives compared

#	App	Score	Free plan	From	Runs on
1	OpenSim	9.1	Free plan	Free	API, Linux, Mac, Windows
2	SimFlow	9.1	Free plan	€666.67/mo	Linux, Mac, Web, Windows
3	ngspice	8.8	Free plan	Free	Linux, Mac, self-hosted, Windows
4	FeenoX	8.8	Free plan	Free	API, Linux, self-hosted, Web
5	COMSOL Multiphysics	8.7			API, Linux, Mac, self-hosted, Web, Windows
6	Xcos	8.7	Free plan	Free	Windows, Mac, Linux
7	FEST-3D	8.7	Free plan	Free	Linux, Mac
8	MPTRAC	8.6	Free plan	Free	Linux, self-hosted, Web
9	myPhysicsLab	8.6	Free plan	Free	Linux, Mac, self-hosted, Web, Windows
10	Open Source Physics	8.5			Web, Windows, Mac, Linux, iOS, Android
11	FDTDX	8.5	Free plan	Free	Linux, self-hosted
12	DynamicalSystems.jl	8.5	Free plan	Free	Linux, Mac, Windows
13	SimScale	8.4			Web
14	Ansys Fluent	8.1
15	OpenFOAM	8.1			Windows, Mac, Linux
16	pyuvsim	8.0			Linux, Mac, Windows
17	VaMPy	8.0	Free plan	Free	Linux, Mac, self-hosted, Windows
18	PyAutoLens	8.0	Free plan	Free	Linux, Mac, Windows
19	FEATool Multiphysics	7.8			Windows, Linux, Mac
20	Kinetic.jl	7.8			API, Linux

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Questions about Walter Fendt Apps on Physics alternatives

What is the best alternative to Walter Fendt Apps on Physics?

OpenSim, number 1 in physics simulation software with a score of 9.1 out of 10. The others here: SimFlow, ngspice, FeenoX and 16 more.

What is the best free alternative to Walter Fendt Apps on Physics?

OpenSim is the best-ranked alternative with a free plan. 12 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on.