Based on the users' reviews of the Roof Bridge app, here are three cons and pros: **Cons:** 1. "Disappointing experience with frequent crashes and slow performance." (15 words) 2. "Limited functionality and features, making it difficult to use for frequent users." (15 words) 3. "No customer support available, leaving users frustrated and helpless." (15 words) **Pros:** 1. "Easy to use and navigate, even for those new to roofing and bridge building." (15 words) 2. "Realistic simulations and precise calculations make it a valuable learning tool." (15 words) 3. "Affordable price point and regular updates make it a worthwhile investment." (15 words) Please note that these conclusions are based on the users' reviews at the time of my knowledge cutoff and may change as more reviews are added.