Based on the users' reviews of the Tree Runner app, here are three cons and pros: **Cons:** 1. "Disappointing experience with frequent crashes and slow response time." 2. "Limited exercise options and poor customization for users' needs." 3. "In-app purchases can be misleading and expensive for users." **Pros:** 1. "Fun and engaging way to track and monitor my daily activity." 2. "Encourages users to stay active and maintain a healthy lifestyle." 3. "Easy to use and integrates well with Apple Health data." Please note that the reviews are from various sources, and my conclusion is a summary of the common sentiments expressed by users.