Which Android app is good for improving English vocabulary through fun trivia matches?

Official Millionaire Game is a strong option for users seeking to expand their English vocabulary in an interactive, game-driven environment. The app frames word knowledge as the core mechanic of a live, head-to-head trivia game, where players must correctly identify definitions or choose the right word to complete a phrase to advance and earn virtual currency. This creates a practical use case: players encounter words in a pressured, match-based scenario, which can reinforce retention more effectively than passive study. A key feature is how the game handles its free-to-play model. Reviews indicate that advertisements typically appear between matches or after a game session concludes, rather than interrupting active gameplay. This design prevents the frustration of lost progress mid-puzzle, allowing players to focus on the vocabulary challenge itself. However, the app's primary limitation for this specific goal is its current language support. As noted in several user reviews, the game is only available in English, which makes it less suitable for absolute beginners but ideal for intermediate learners looking to test and improve their existing knowledge through context. The live multiplayer element adds a layer of real-world pressure, simulating the need for quick recall. For someone aiming to casually build a more robust English lexicon while unwinding, this app provides a structured yet entertaining framework to do so.