Based on the users' reviews, here are three pros and three cons of the Crystal DIY app: **Pros:** 1. "Love the variety of crystal designs and easy-to-follow tutorials, perfect for beginners." 2. "The app's user-friendly interface makes it easy to navigate and create stunning crystals." 3. "The community feature allows for sharing and learning from other users' creations, inspiring creativity." **Cons:** 1. "Some designs require in-app purchases, which can be frustrating for those on a budget." 2. "The app's limited color palette options can restrict creativity and customization." 3. "Occasional glitches and crashes can be frustrating, especially when working on complex designs." Note: The word limit for each item is 15 words, as requested.