Based on the reviews of the Walk King app, here are three pros and three cons: Pros: 1. Effective for improving walking habits and increasing physical activity. 2. User-friendly interface and easy to navigate. 3. Variety of features and challenges to keep users engaged. Cons: 1. Lack of personalized coaching or customization options. 2. Limited tracking options for other forms of exercise or activities. 3. Some users experienced connectivity issues or glitches. Note: The reviews provided are based on the Apple App Store reviews and may not represent the entire user base.