Based on the user reviews, here are the top 3 cons and pros of the Long Hair Dye app: **Cons:** 1. Limited color options and difficulty in picking shades, leading to trials and errors. 2. Some users experienced glitches, slow loading, and crashes, frustrating their dyeing process. 3. Lack of real-time guidance and tutorials, leaving users uncertain about application techniques. **Pros:** 1. Precise digital simulation of hair color results, allowing users to visualize before application. 2. Easy-to-use interface and gentle learning curve, making it accessible for beginners. 3. Realistic texture and finish simulations, helping users make informed decisions about their hair treatment. Please note that these points are based on the user reviews and may not represent the entire experience of all users of the app.