Screenink is a real-time translation application designed for iPhone and iPad users, enabling instant translation of screen content. The app allows users to select specific areas of the screen for translation, making it particularly useful for watching videos or playing games in foreign languages. For instance, it can display Chinese subtitles while watching videos with only English subtitles in various apps.

Additionally, Screenink supports game translations by letting users customize translation areas, ensuring a seamless experience with games that have text in languages such as Japanese. The app also offers screenshot translation capabilities and supports multiple languages, including English, Japanese, Korean, French, and Italian, translating them into Chinese. It provides subscription options for enhanced features, including monthly and yearly plans.