TOPIK Exam is a free app designed for individuals who want to self-study Korean ability. This app covers all levels of the TOPIK exam and is divided into three parts: reading, listening, and writing. It also provides a comprehensive list of common words that are useful for preparing for the real examination. Additionally, users can take quizzes to test their vocabulary.

The app boasts a user-friendly interface and is easy to navigate. It offers tests for both TOPIK levels 1 and 2, including the old format tests below the 34th edition. The tests cover various sections such as listening, reading, vocabulary and grammar, and writing. The app also provides a review of common basic words and offers quizzes to help users memorize over 6,000 words.

One of the standout features of this app is that it constantly updates its question bank, ensuring that users have access to the most up-to-date questions. It also supports multiple languages, including English and Khmer. Users can choose between two modes: Practice and Test mode, and the app keeps track of users' test history for analysis.

Overall, TOPIK - 한국어능력시험 is a comprehensive app that provides a valuable resource for individuals looking to improve their Korean language skills. The user-friendly interface, extensive question bank, and quizzes make it an effective tool for self-study. However, it would be beneficial if the developer provided a way for users to provide feedback within the app itself, rather than suggesting to contact them via email.