Based on the users' reviews of the Ribbon Challenge app, here are three cons and pros: **Cons:** 1. "Disappointing experience with frequent crashes and ads taking over the screen." (15 words) 2. "Unrealistic expectations with rewards, expecting more substantial prizes for completing challenges." (15 words) 3. "Poorly designed user interface makes it hard to navigate and play the game consistently." (15 words) **Pros:** 1. "Addictive and entertaining, loved playing daily challenges and earning rewards." (15 words) 2. "Well-designed levels with increasing difficulty keeps the game engaging and challenging." (15 words) 3. "User-friendly and easy to understand, great for players of all ages and skill levels." (15 words) Note: I've summarized the cons and pros from the users' reviews, please check the app's page for more reviews and ratings.