Based on the user reviews of the app "Cocoa Assist - iOS Control Library Finder", here are three cons and pros: **Cons:** 1. Limited functionality causes frustration: Some users find the app lacking in features, leading to disappointment. 2. Navigation can be confusing: Users struggle to find what they need, with some citing unclear menus and complexity. 3. Occasional crashes: Some reviewers experience the app freezing or crashing, which can be frustrating and disappointing. **Pros:** 1. Quick and easy control library search: Users praise the app's fast and accurate search functionality, saving time. 2. Convenient control preview: Many appreciate the ability to preview controls before implementing them, reducing trial and error. 3. Useful for beginners and pros alike: The app's intuitive design and extensive library make it valuable for developers of all skill levels. Please note that the user reviews are subject to change, and this conclusion is based on a snapshot of the reviews at the time of my knowledge cutoff.