PyFoma Alternatives
PyFoma is described as 'An open source (Apache) package for finite-state automaton and transducer modeling and learning. It is implemented entirely in Python with no external dependencies' and is an app. There are 2 alternatives to PyFoma for Mac, Windows and Linux. The best PyFoma alternative is Foma, which is both free and Open Source.
Alternatives list
The Helsinki Finite-State Transducer toolkit is intended for processing natural language morphologies. The toolkit is demonstrated by wide-coverage implementations of a number of languages of varying morphological complexity.