After analyzing the reviews of the Nonogram Classic app on the Google Play Store, I've extracted the following points: **Pros:** 1. **Addictive and engaging**: Many users praise the app's ability to keep them engaged and hooked, with some even mentioning they've spent hours playing it. 2. **Easy to learn**: The app's simple and intuitive design makes it easy for new players to pick up and start playing. 3. **Variety of puzzles**: The app offers a wide range of puzzle sizes and difficulties, keeping the gameplay fresh and exciting. 4. **Good value for money**: Many users feel that the app provides good value for its price, with some even mentioning they've spent money on in-app purchases. 5. **Regular updates**: The developers seem to be actively updating the app, adding new features and puzzles to keep the game fresh. **Cons:** 1. **In-app purchases can be frustrating**: Some users feel that the in-app purchases can be too aggressive, with some even feeling like they're being pressured into buying. 2. **Limited free content**: The app's free version has limited content, which can be frustrating for users who want to play more puzzles without committing to a purchase. 3. **Some puzzles can be too easy or too hard**: A few users mention that some puzzles are either too easy or too hard, which can be frustrating for players who want a consistent challenge. 4. **Occasional bugs and glitches**: Some users report encountering bugs and glitches, which can be frustrating and disrupt the gameplay experience. 5. **No undo feature**: Some users mention that there's no undo feature, which can be frustrating when making mistakes or trying to experiment with different solutions. Overall, the app seems to have a strong positive reception, with many users praising its engaging gameplay and variety of puzzles. However, some users have expressed frustration with the in-app purchases, limited free content, and occasional bugs.