Based on the users' reviews of the "Stack and Transform" app, here are three cons and pros in English, with each item limited to 15 words: **Pros:** 1. Users praise the app's unique puzzle-solving concept, saying it's engaging and challenging. 2. Many reviewers appreciate the app's clean design and user-friendly interface. 3. Players enjoy the app's increasing difficulty levels, keeping them entertained for hours. **Cons:** 1. Some users find the app's levels too repetitive, leading to boredom and frustration. 2. A few reviewers experience bugs and glitches, causing app crashes and lost progress. 3. A minority of users dislike the app's lack of customization options and limited game modes. Please note that these conclusions are based on a snapshot of user reviews and may not reflect the entire range of opinions on the app.