Based on the users' reviews of the Stacker Boy app, here are three cons and three pros, each within a 15-word limit: **Cons:** 1. Many users complain about the app's in-app purchases being too expensive, feeling ripped off. 2. Some users experience frustrating ads and slow loading times during gameplay. 3. Several reviewers are unhappy with the app's lack of customization options and limited levels. **Pros:** 1. Users praise the app's engaging gameplay, simple yet addictive design, and fun graphics. 2. Many reviewers enjoy the app's social sharing feature, allowing them to compete with friends. 3. Several users appreciate the app's regular updates with new levels, puzzles, and challenges.