After analyzing the user reviews, here are the top 3 cons and pros of the "Scales Calculator" app: **Cons:** 1. "Inconsistent unit conversions, often incorrect" - Users reported frustrating errors when trying to convert between units. 2. "Limited functionality, not suitable for complex calculations" - Some users found the app too basic for their needs, lacking advanced features. 3. "Too many ads, distracting and annoying" - Many users complained about the frequent and intrusive ads within the app. **Pros:** 1. "Easy to use, intuitive interface, perfect for simple conversions" - Many users praised the app's user-friendly design, making it easy to get started. 2. "Fast and reliable calculations, accurate results" - Users appreciated the app's speed and accuracy when performing calculations. 3. "Free version is sufficient for basic needs, no need to upgrade" - Some users found the free version of the app to be sufficient, with no need to purchase the premium version. Please note that these are summaries of the top-rated cons and pros, but may not reflect every single review.