After analyzing the user reviews on the Apple App Store, here are three cons and pros of the "Sand Fill" app: **Cons:** 1. Users complain that the app is **not intuitive** and difficult to use, with unclear instructions. 2. Some reviewers **experience bugs** and crashes, which can be frustrating and cause data loss. 3. A few users **find the app too limited**, with insufficient features and functionality. **Pros:** 1. Many users **appreciate the app's simplicity**, with an easy-to-use interface and minimal complexity. 2. Reviewers praise the **accurate and realistic sand simulation**, making it a great tool for creative projects. 3. Users **love the free version**, with its ad-free experience and decent level of functionality for casual users.