Based on the users' reviews of the Unicycle app, here are three cons and three pros: **Cons:** 1. Some users find the app's interface and navigation confusing. 2. Others report occasional connectivity issues and slow loading times. 3. A few users express dismay over the lack of customization options. **Pros:** 1. Many reviewers praise the app's simplicity and ease of use. 2. Users appreciate the app's ability to track their uni-velocity and distance traveled. 3. The app's gamification features and rewards system are also well-received. Please note that these conclusions are based on a limited sample of user reviews, and it's always possible that opinions may vary.