Based on the users' reviews of the XQuiz: Flags of the World app, here are three cons and pros in English, with 15 words or less for each item: **Pros:** 1. Engaging quizzes and questions to help users learn and test their knowledge. 2. Visually appealing design with clear and concise information on each country's flag. 3. Ability to track progress and earn rewards for correct answers. **Cons:** 1. Limited content, only covering 200+ countries, and lacking detailed information. 2. Some users find the app too repetitive, with too many repeated questions. 3. Technical issues, such as glitches and slow loading times, experienced by some users. Please let me know if you'd like me to help with anything else!