Based on the users' reviews, here are three cons and pros of the "Can You Hold For 30 Seconds" app: **Cons:** 1. "Glitches and crashes frequently, frustrating experience." (15 words) 2. "Limited features and functionality, not worth the download." (15 words) 3. "Lack of customization options, can't tailor the app to my needs." (15 words) **Pros:** 1. "Helpful for improving focus and attention span, a great tool." (15 words) 2. "Simple and easy to use, perfect for beginners." (15 words) 3. "Effective at building discipline and self-control, highly recommended." (15 words) Note: The words limit is 15 words per item, and the cons and pros are based on the general sentiment of the users' reviews.