Based on the users' reviews, here are three cons and pros of the "Convert Units" app: **Pros:** 1. Accurate conversions: Users praise the app's precision in converting metric to imperial units. (11 words) 2. Easy to use: The app's simple and intuitive design receives widespread acclaim. (12 words) 3. Free and helpful: Many users appreciate the app's free service and find it very helpful. (11 words) **Cons:** 1. Limited unit options: Some users find the app lacks support for certain units or conversions. (13 words) 2. Ads can be intrusive: A few users complain about the app's ad placement and frequency. (12 words) 3. Bugs and glitches: A handful of reviewers experience errors or crashes while using the app. (12 words)