Based on the user reviews on the App Store, here are the top 3 cons and pros of the Cube Stack 3D app: **Cons:** 1. Limited level variety and repetitive gameplay lead to boredom. 2. Ads are unskippable and pop up frequently, disrupting playing experience. 3. Glitches and crashes occur frequently, causing frustration and loss of progress. **Pros:** 1. Innovative 3D cube-stacking concept is engaging and challenging. 2. Simple yet addictive gameplay appeals to audiences of all ages. 3. Free version offers a good balance of simplicity and variety without ads. Please note that the number and content of cons and pros may vary based on the user reviews and their opinions.