Based on the users' reviews, here are three cons and pros of the Fly n' Stack app: **Cons:** 1. "Crashing issues and bugs" - Users encountered frequent crashes and errors throughout their experience. 2. "Limited levels and repetitive gameplay" - Some users felt that the app lacked variety in its levels and objectives. 3. "No real sense of progression" - Others felt that the app did not provide a clear sense of improvement or accomplishment. **Pros:** 1. "Intuitive and easy to learn" - Users praised the app's simple and straightforward gameplay mechanics. 2. "Highly addictive and fun" - Many users found the app to be engaging and entertaining, making it hard to put down. 3. "Visually appealing and colorful" - The app's graphics and design were highly praised by many users, making it a pleasure to play. Note: Each point is limited to 15 words as per your request!