This project shall be done by Bilkent University School of English Language and be developing in iOS platform. This project “Busel vocabulary application” is a mobile IOS application that teaches English vocabulary. Vocabulary application includes new features and games besides major activities of the English learning such as listening and vocabulary practices. At the same time, it will contribute to students’ exam preparation. The project aims to learn English and contribute to teach English via mobile technology. In today’s world, education instructors benefit from any kind of technological tools except mobile technology in order to be liked education. Our project will help education system for learning English easily and iOS Vocabulary app will fill the lack of the mobile learning applications in the Turkish preparation system.