Based on the user reviews on the App Store, here are three cons and pros of the MentalPlay app, each limited to 15 words: **Cons:** 1. "Too many ads interrupting sessions, making it frustrating to focus on mental exercises." 2. "Limited customization options for users with specific cognitive strengths or weaknesses." 3. "Notifications can be overwhelming, with too many emails and reminders." **Pros:** 1. "MentalPlay offers engaging and challenging exercises that improve focus and mental clarity." 2. "The app tracks progress and provides insightful analytics for users to monitor improvement." 3. "The community features allow for friendly competition and support from fellow users." Please note that these are based on the user reviews available on the App Store and may not be a comprehensive summary of all opinions.