Based on the user reviews, here are three cons and three pros, with 15 words or less for each: **Cons:** 1. **Frustrating experience**: Users report difficulty navigating the app, leading to frustration and disappointment. 2. **Limited features**: Some users feel that the app lacks essential features, making it less useful than expected. 3. **Technical issues**: Frequent crashes and errors cause annoyance and affect overall app performance. **Pros:** 1. **Innovative concept**: Users appreciate the unique 3D vision technology, calling it a "game-changer" in eye care. 2. **Simple to use**: Many users find the app easy to navigate, even for those new to eye care or technology. 3. **Effective results**: Users report noticeable improvements in their vision, citing the app's effectiveness in correcting issues.