Based on the App Store reviews of Nature Mandala Coloring Book, here are the conclusion: **Pros:** 1. "Stress-relieving app with soothing mandalas and calming atmosphere." (15 words) 2. "Lovely designs and variety of mandalas to color and customize." (15 words) 3. "User-friendly interface and smooth coloring experience with various brushes." (15 words) **Cons:** 1. "Limited number of mandalas and no new content added recently." (15 words) 2. "No ability to save progress and start where you left off." (15 words) 3. "Some glitches and technical issues with color Choices and brushes." (15 words) Note: The words are limited to 15 words for each item as per your request.