LEARN ENGLISH BY RADIO is a series of iPhone apps that greatly improves listening comprehension in ESL and EFL students. Innovative features include variable speed audio; synched, reversible transcripts; embedded links for immediate pronunciation, idiom, vocabulary and grammar clarifications. These apps seamlessly weave ESL education into classic American radio shows such as Gunsmoke, Dragnet, Our Miss Brooks (comedy) and X Minus 1 (sci-fi).