Based on the reviews of IQ Rush on the App Store, here are three cons and three pros: **Cons:** 1. "App is too simplistic; doesn't provide challenging enough puzzles for experienced users." 2. "Glitches and bugs affect gameplay, causing frustration and disappointment." 3. "Limited features and lack of customization options are underwhelming." **Pros:** 1. "Intuitive design and easy-to-understand gameplay make it accessible to a wide range." 2. "Daily challenges and rewards provide a sense of accomplishment and motivation." 3. "Fun and engaging puzzles that are perfect for killing time or improving cognitive skills." Note: The reviews are a mix of 1-5 star ratings, with a overall rating of 4.1/5. Opinions tend to be divided between users who enjoy the app's simplicity and others who find it too easy or lacking in features.