Based on the users' reviews of the "Coloring Book and Drawing Dinosaur on Sketch Line" app, here are three cons and pros: **Cons:** 1. Limited number of pages and designs, users get bored quickly. "More pages and designs would be great!" 2. Advertisements can be annoying and disrupt the coloring experience. "Too many ads, it's frustrating!" 3. In-app purchases can be confusing, prices are unclear. "Not clear about what I'm paying for, pricing is confusing." **Pros:** 1. Simple and intuitive interface, easy to use for kids and adults. "Love the simplicity of the app, anyone can use it!" 2. Variety of dinosaur designs and colors, great for creativity. "So many fun options for coloring and designing!" 3. Good value for money, many free pages and features. "Free pages are a great start, and the price is reasonable." Note: These conclusions are based on a selection of reviews and may not represent the opinions of all users.