ReadLang WatchLang is an educational application available on the iPhone platform. Developed by Nguyen Hong Phuc, this free app falls under the category of Education & Reference. It aims to assist language learners in improving their fluency by providing context while browsing and reading their favorite blogs, news articles, and watching YouTube videos.

One of the main features of ReadLang WatchLang is the ability to translate words and phrases on any web page with just one tap. This feature allows users to easily understand the meaning of unfamiliar vocabulary and expand their language skills. Additionally, the app offers a YouTube video player with dual subtitles, enabling learners to watch videos with subtitles in two languages simultaneously.

With ReadLang WatchLang, users can learn a wide range of languages, including English, Spanish, German, Korean, Japanese, and over 100 more. The app supports various languages from Afrikaans to Zulu, catering to learners from different linguistic backgrounds.

Overall, ReadLang WatchLang provides language learners with a convenient way to enhance their skills by offering translation support and dual subtitles for YouTube videos. It is a useful tool for those who want to learn languages in context and practice their listening skills while browsing the web or watching videos.