Based on the user reviews on the Apple App Store, here are three cons and three pros, each limited to 15 words: **Cons:** 1. Limited features: Many users find the app limited in its functionality, lacking key features. 2. Difficulty with water type selection: Some users struggle to select the correct water type for their needs. 3. Inaccurate calculations: A few users report inconsistent and inaccurate calculations, undermining trust in the app. **Pros:** 1. Easy to use interface: Many users praise the app's user-friendly interface, making it simple to navigate. 2. Accurate buoyancy calculations: Most users find the app's buoyancy calculations accurate and reliable. 3. Helpful for scientific education: Educators and students appreciate the app's ability to facilitate scientific learning and exploration.