Based on the user reviews of the app "Sight Word Mastery - Zeno Words", here are three cons and three pros: **Cons:** 1. "Too limited vocabulary" - Some users found the app's list of sight words to be too small and not challenging enough. 2. "No customization options" - Some users wished for more customization options to adjust the app's settings to their child's learning style. 3. "Occasional glitches" - A few users experienced glitches and bugs that disrupted their child's learning experience. **Pros:** 1. "Engaging and fun" - Many users praised the app's interactive and gamified approach to learning sight words, making it enjoyable for their children. 2. "Effective results" - Many users reported significant improvement in their child's reading skills and sight word recognition after using the app. 3. "Easy to use" - Users appreciated the app's user-friendly interface and how easy it was to navigate, making it accessible to children of all ages. Note: The reviews are generally positive, with many users praising the app's effectiveness and fun approach.