Based on the user reviews on the Apple App Store, here are three pros and three cons of the Pen Boom app: **Pros:** 1. Easy to use interface for creating notes and to-do lists in a fun way. 2. Variety of colorful pens and customization options available for creative expression. 3. Voice-to-text feature allows hands-free note-taking for efficient productivity. **Cons:** 1. Limited export options for notes and to-do lists despite being a digital tool. 2. Advertisements can be distracting and disrupt the user experience. 3. Some users have reported issues with the app's formatting and layout.