Based on the users' reviews of the Spring Master 3D app, here are three cons and three pros in 15 words or less per item: **Cons:** 1. Lack of clear instructions makes it difficult to navigate the app's features. 2. Limited brushes and tools, limiting creative possibilities and flexibility. 3. Frequent crashes and glitches hinder progress and cause frustration. **Pros:** 1. Intuitive interface and user-friendly design make it easy to learn and use. 2. High-quality 3D renderings and realistic textures add depth and detail to designs. 3. Social sharing features allow users to showcase their creations and connect with others.