Based on the user reviews, here are three pros and three cons of the "Forbidden Letter" app, each limited to 15 words: **Pros:** 1. Users praise the app's engaging storyline, calling it "addictive" and "intriguing". 2. Many appreciate the app's unique puzzle-solving mechanics and "brain teaser" challenges. 3. Some users highlight the app's minimalist design and clean interface as a positive. **Cons:** 1. Some users complain about the app's short gameplay sessions, calling them "too short" and "anticlimactic". 2. A few reviewers criticize the app's lack of difficulty progression, finding it "too easy" or "too repetitive". 3. A handful of users report technical issues, such as crashes, bugs, or poor performance on certain devices.