Based on the user reviews on the Apple App Store, here are three pros and three cons of the "Ball Defence" app, each limited to 15 words: **Pros:** 1. Players praise the game's simple yet addictive gameplay mechanics, saying "it's hard to put down". 2. The app's beautiful graphics and animations are widely praised, with many calling it "visually stunning". 3. Users appreciate the game's ability to provide a high level of challenge, saying it "keeps them coming back". **Cons:** 1. Some users find the game's difficulty spikes too harsh, leading to frustration and disappointment. 2. A few reviewers criticize the app's lack of variety in levels and gameplay mechanics, saying it gets "stale". 3. Some users experience performance issues, such as lag and crashing, which can disrupt the gameplay experience. Please note that these are general summaries based on the Apple App Store reviews and may not reflect the opinions of all users.