常用英语词汇 is a free iPhone application developed by 品 高, falling under the Business & Productivity category. The app aims to provide a collection of essential English vocabulary for business, office, and white-collar professionals. It offers offline usability, word pronunciation, and detailed explanations. The main features include smart grouping, detailed word explanations with real human pronunciation, progress tracking, automated mistake recording in tests, easy word bookmarking, and quick word search functionality.

With its focus on categorizing and explaining commonly used English vocabulary, this app caters to individuals looking to enhance their English language skills in a professional setting. Users can benefit from its user-friendly interface and convenient features for effective vocabulary learning.