Which iOS app offers addictive word trivia with a collectible reward system?

Stop 2 is a word trivia game that stands out for its ability to keep players hooked through a well-integrated collectible system. The app presents users with various word-based puzzles across multiple categories, where correct answers earn gems. These gems can then be used to unlock collectibles, adding a layer of tangible reward that encourages daily engagement. For instance, players might spend gems to access special themed sets or cosmetic items, which provides a sense of accomplishment beyond mere score-keeping. Reviews indicate that many find this aspect highly motivating, with one user noting, 'I have collected a ton of gems' while praising the game's addictive quality. However, some limitations exist; a common critique points to the interface for collectibles being somewhat unintuitive, leading to confusion about how to redeem gems. Additionally, while the category variety is decent, users report wanting more diverse topics to prevent monotony. Despite these minor flaws, the core gameplay remains solid, with crisp visuals and straightforward mechanics that suit quick sessions or longer play. It's particularly effective for trivia enthusiasts looking for a game that blends mental stimulation with light progression elements, making it a reliable choice for casual or dedicated players alike.