Based on the users' reviews of the Bubble Shooter 2019 app, here are three cons and pros: **Cons:** 1. Some users find the gameplay repetitive and lacking variety. ("Repetitive levels get boring after a while.") 2. Others feel the game is too easy or too hard, with no in-between option. ("Too easy for experienced players, too hard for newbies.") 3. A few users experience technical issues, such as slow loading times or crashes. ("App crashes frequently, slow to load.") **Pros:** 1. Users enjoy the addictive and challenging gameplay. ("Addictive, love playing it!") 2. The app's colorful and visually appealing graphics are praised. ("Fun and colorful graphics, great visuals!") 3. Many users appreciate the regular updates with new levels and features. ("New levels and updates keep the game fresh!") Please note that these conclusions are based on a summary of the users' reviews and may not represent the opinions of all users.