Based on the users' reviews of the "Puzzles: Amazing Jigsaw Birds Collection Pro" app, here are three cons and pros in English, with each limited to 15 words: **Cons:** 1. Some users find the app's free version too limited, with few levels and poor performance. 2. Others criticize the app's ads, which they consider intrusive and visually obstructive. 3. A few users experience app crashes or freezing issues, leading to frustration and uninstallation. **Pros:** 1. Reviewers praise the app's engaging and challenging jigsaw puzzles, with increasingly complex levels. 2. Many users appreciate the wide variety of bird species and beautiful, high-quality images used in puzzles. 3. The app's clean and user-friendly interface makes it easy to navigate and play, even for casual puzzle fans. Please note that the reviews are subjective and may vary based on individual user experiences and preferences.