Based on the users' reviews, here are three cons and pros of the "13 Number Puzzle" app: **Cons:** 1. "Too easy; got bored quickly; needed more challenging levels." - Multiple reviewers. 2. "Lack of customization options; can't adjust game difficulty or soundtrack." - Frustrated user. 3. "Glitches occurred; froze during gameplay; couldn't save progress." - Disappointed player. **Pros:** 1. "Engaging and addictive; great time-killer when waiting in lines." - Satisfied customer. 2. "Clever puzzle design; required strategic thinking and problem-solving skills." - Puzzled enthusiast. 3. "Simple yet effective UI; easy to navigate and start playing quickly." - User-friendly critic. Please note that these conclusions are based on a selection of user reviews and may not reflect the full range of opinions on the app.