After analyzing the reviews, here are three pros and three cons of the Fill Balance 3D app: **Pros:** 1. **Intuitive design**: Easy to use with a straightforward interface that helps users focus on filling and balancing. 2. **Helpful features**: Additional tools and enhancements like symmetry mode and undo/redo options are particularly useful. 3. **Innovative concept**: The 3D filling and balancing concept is unique and engaging, providing a refreshing puzzle experience. **Cons:** 1. **Limited levels**: Some users feel the level variety is limited, making the game less challenging or replayable. 2. **No online leaderboards**: The lack of online leaderboards or competitions can make the gameplay feel isolated. 3. **Occasional glitches**: Some reviewers have reported experience with freezes, crashes, or incorrect calculations, which can be frustrating.