Speedy English Grammar Lessons is an English grammar trainer and vocabulary builder app developed by Nathan Trenchard. It is an ideal way to learn and improve your English language skills quickly and effectively. The app offers over 200 simple lessons, grammar exercises, and practice games that are suitable for ESL beginners, basic-level students, and intermediate-level learners (A1, A2, and B1). It is available for iPhone users and is a full version without any annoying ads.

The app is designed to teach the syntax skills you need for conversation, in your ESL classes or for IELTS and TOEIC test preparation. It includes a simple color-coded grammar book, listening exercises, and challenge games that will test your English knowledge. Moreover, the app offers an irregular verb conjugation trainer, a section devoted to suffixes, and a list of irregular verbs in the grammar reference book. You can choose whether you want to learn American or British English vocabulary and pronunciation. The app is an excellent and fun way to learn English grammar and improve your speaking skills.