Based on the users' reviews of Nonogramz - Japanese Crosswords, here are three pros and cons: **Pros:** 1. Challenging yet engaging: Users praise the app's difficulty level, saying it's the perfect blend of challenging yet enjoyable. 2. Variety of puzzles: The app offers a wide range of puzzles, ensuring users never get bored with the same old clues. 3. Great for puzzle enthusiasts: Fans of crosswords and Nonograms appreciate the app's thoughtful design and addictive gameplay. **Cons:** 1. Advert-heavy: Some users find the app's ads overly intrusive and distracting, disrupting their puzzle-solving experience. 2. Limited free content: While the app offers some free puzzles, users are limited in the content they can access without in-app purchases. 3. Clumsy interface: A few reviewers find the app's layout and navigation somewhat awkward, leading to frustration and errors.