Amino Acid Codons Tutor is an app designed to help you memorize the mRNA codons of the genetic code that correspond to the twenty amino acids and the start signal methionine and stop signal codons. The app is designed to take advantage of repetition in the third base of the codons to help simplify and accelerate memorization. An ideal tool for the professional geneticist, interested scientist or the ambitious intern seeking to create a good first impression with an employer or professor.