This app can be used to simulate finite automata, pushdown automata,Turing machines, Moore machines and Mealy machines. This app is meant to be used as an instructional tool in a course on automata theory. For more information on automata simulators, please refer to Chakraborty et al. (2011) [Chakraborty, P., Saxena, P. C. and Katti, C. P. 2011. Fifty years of automata simulation: a review. ACM Inroads, 2(4): 59-70.]. This app has been developed by Simra Afreen and Tuhina Singh.