Theory of Automata/Computation is very wide field and mostly used in AI (Artificial Intelligence) and compiler construction. This is an education app for Computer Science students. It is the most handy and user-friendly Automata Calculator available on the store. This app is capable of doing some basic Automata Calculations (Conversions).
Following are major functionalities:
• DFA to RE
Deterministic Finite Automation to Regular expression
• NFA to DFA
Non-Deterministic Finite Automation to Deterministic Finite Automation
• NFA to direct RE
Non-Deterministic Finite Automation to Regular expression
• NFA-Null to NFA
Epsilon Non-Deterministic Finite Automation to Non-Deterministic Finite Automation
• NFA-Null to direct DFA
Epsilon Non-Deterministic Finite Automation to Deterministic Finite Automation
• NFA-Null to direct RE
Epsilon Non-Deterministic Finite Automation to Regular expression

The app is very useful as these concepts are used in Computer Science now-a-days.
App tutorial is avaliable in promo video