Based on the users' reviews, here are three pros and cons of the app "Hero War - Army on Frontline": **Pros:** 1. Engaging gameplay and continuous updates keep players excited. 2. Wide variety of heroes and abilities to explore and master. 3. Good balance between strategy and action, making it challenging yet fun. **Cons:** 1. Frequent pop-up ads and limited free play time can be frustrating. 2. Some users report issues with connection or disconnections during gameplay. 3. Lack of in-depth tutorials or guidance for new players can be overwhelming.