Based on the user reviews of the "Mr. Teeth" app, here are three cons and three pros in 15 words or less per item: **Cons:** 1. Some users find the app's navigation and menus confusing and hard to use. 2. Others complain about frequent crashes and bugs that disrupt gameplay. 3. A few users are unhappy with the lack of customization options for teeth shapes and sizes. **Pros:** 1. Many users praise the app's unique and addictive gameplay mechanics. 2. Reviewers appreciate the variety of teeth types and levels of difficulty offered. 3. The app's colorful and visually appealing graphics are a major hit with users.