Based on the users' reviews of the Tsunami Io app, here are three cons and three pros, each within a 15-word limit: **Cons:** 1. Many users reported annoying ads and intrusive notifications. 2. Some users faced issues with game performance and laggy graphics. 3. Few users felt the game was too repetitive and lacked variety. **Pros:** 1. Most users praised the game's addictive and engaging gameplay mechanics. 2. Many users appreciated the regular updates with new levels and features. 3. Users generally enjoyed the relaxing and calming atmosphere of the game. Let me know if you'd like me to help with anything else!