After analyzing the users' reviews, here are three cons and pros for the Rainbow app: **Pros:** 1. Users appreciate the app's ability to track and monitor their mood, with some finding it "accurate" and "helpful". 2. Patients praise the app's gentle and non-judgmental approach to mental health, citing it as "soothing" and "calming". 3. Some users enjoy the app's gamification features, such as the daily rewards and streak tracking, which motivates them to maintain their mental well-being. **Cons:** 1. Many users find the app's UI and design to be outdated and clunky, with some calling it "busy" and "hard to navigate". 2. Some reviewers experience technical issues, such as crashes and freezing, which can disrupt their use of the app. 3. A few users are disappointed with the app's limited features and lack of customization options, citing it as "basic" and "not very personalized".