Based on the user reviews of the "Multiply Stacker" app, here are three pros and three cons in 15 words or less: Pros: 1. "Helpful for improving math skills, especially multiplication facts, thank you!" 2. "Intuitive interface and fun animations make learning enjoyable and engaging." 3. "Customizable levels and rewards keep practice sessions fresh and motivating." Cons: 1. "Some levels are too easy, others too hard, lacks adjustable difficulty setting" 2. "Limited feature set, no option to create own custom multiplication lists" 3. "Notifications and ads can be intrusive and distracting during gameplay"