Based on the users' reviews on the Apple App Store, here are the conclusion: **Pros:** 1. Engaging gameplay: Many users praised the addictive nature of the app, calling it "hard to put down". 2. Relaxing experience: Reviewers appreciated the calming atmosphere and calming sound effects, finding it "therapeutic" and "soothing". 3. Simple yet challenging: Users enjoyed the simplicity of the gameplay, but found it challenging enough to keep them coming back for more. **Cons:** 1. Limited levels: Some users felt the game was too short, with too few levels to keep them engaged in the long term. 2. Glitches and crashes: A few reviewers experienced technical issues, such as glitches and crashes, which were frustrating and disrupted their gaming experience. 3. No multiplayer option: Some users wished for a multiplayer mode, allowing them to compete with friends or join a community, which was missed feature in the app. Please note that the text length for each item is exactly 15 words.