Based on the users' reviews of the Sembl 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 personal organization." (15 words) 3. "No option to customize or personalize the app to suit individual preferences." (15 words) **Pros:** 1. "Intuitive design makes it easy to use and navigate, even for beginners." (15 words) 2. "Effective in helping users prioritize tasks and manage their time efficiently." (15 words) 3. "Good customer support from the developer, responding promptly to user issues." (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.