Based on the user reviews on the Apple App Store, here are three cons and pros of the Block Art app: **Cons:** 1. "Limited color palette and lack of customization options limit creative freedom." 2. "Some features, like undo and redo, can be glitchy and unreliable." 3. "No saving option, requiring users to recreate artwork for future reference." **Pros:** 1. "Innovative concept allows for unique and expressive block-based artwork." 2. "User-friendly interface makes it easy to learn and navigate." 3. "Ability to create intricate and detailed designs within a short period."