Relingo is an iPhone application developed by Lesslab LLC, available for free in the Education & Reference category. It offers a seamless way to enhance language skills by effortlessly mastering new words and checking translations while engaging with various content types.

Users can leverage Relingo to access content sources such as YouTube bilingual subtitles, podcast subscriptions with AI subtitles, import and read Epub e-books, and even add custom web pages. The app also features a built-in browser plug-in for Safari, enabling word collection during online browsing.

Additionally, Relingo supports learning multiple languages like English, French, German, Chinese, Japanese, and Korean. It provides various translation engines, automatically highlights new words, and offers word learning capabilities based on Anki algorithms for memory reinforcement.