Based on the users' reviews of the "Middle School Vocab Challenge" app, here are three cons and pros: **Cons:** 1. Limited vocabulary selection and repetition of same words. "Not enough variety in vocabulary, gets repetitive quickly." 2. Technical issues and app crashes frequently occur. "App crashes often, can't even finish a single level." 3. No option to modify difficulty level or customize learning. "Not enough control over learning experience, too easy or too hard." **Pros:** 1. Engaging and interactive way to learn new vocabulary. "Fun and interactive way to learn new words, keeps me entertained." 2. Progressive learning system helps build confidence and skills. "App helps me improve vocabulary skills, feels like progress." 3. Effective and efficient use of time and practice sessions. "App is effective and efficient, helps me stay focused and learn quickly."