모든 영어 사전 (All English Dictionaries) is an iPhone application developed by ILHWAN CHO. It falls under the category of Education & Reference and is available for free. This app allows users to search for words in multiple dictionaries simultaneously, making it a convenient tool for language learners and enthusiasts.

With 모든 영어 사전, users can search for words in various dictionaries, including popular ones like Naver, Daum, Oxford, and Webster. It also includes specialized dictionaries like KMLE for medical terms and Urban for slang words. Additionally, users can access Thesaurus.com for synonyms and Dictionary.com for definitions.

The app also offers a feature called "검색 히스토리 & 단어장" (Search History & Wordbook) which provides word lists categorized by difficulty level, such as Basic, TOEIC, TOEFL, SAT, GRE, and GMAT. This feature is especially useful for test preparation or building vocabulary.

Overall, 모든 영어 사전 is a comprehensive and user-friendly app that brings together a wide range of English dictionaries in one place. Whether you are a student, professional, or language enthusiast, this app can be a valuable resource for improving your English language skills.