Based on the user reviews, here are three cons and three pros, with 15 words or less for each: **Cons:** 1. **Frustrating difficulty progression**: Some users found the level progression too rapid, causing frustration. 2. **Limited feedback on mistakes**: Users criticized the app for not providing sufficient feedback on incorrect answers. 3. **Occasional glitches and freezes**: A few reviewers experienced glitches and freezing issues while using the app. **Pros:** 1. **Engaging and interactive learning experience**: Many users praised the app's engaging and interactive way of teaching math. 2. **Personalized progress tracking and reports**: Reviewers appreciated the app's ability to track their progress and provide detailed reports. 3. **Effective in improving math skills**: Users reported significant improvement in their math skills after using the app regularly.