Learn Languages with LingoKing, previously known as Niavo, is a powerful language learning app designed to help users master English, Spanish, French, German, Japanese, Chinese, Italian, Korean, Portuguese, Russian, and Arabic efficiently. The app focuses on vocabulary, offering around 1800 high-frequency words categorized by scenes and attributes for effective memorization. By learning 15 new words daily for 2 months, users can grasp approximately 1000 words. LingoKing also provides example sentences and pronunciation guidance for better understanding and usage of words.

Additionally, LingoKing features a unique function for gender distinction in Spanish, French, Italian, and Portuguese words, along with multilingual word translations on a single page. The app emphasizes the importance of review and self-testing based on the Ebbinghaus Forgetting Curve theory, offering visualized review methods and six test modes for efficient learning and retention.