Based on the user reviews on the App Store, here are three Cons and Pros of the "MaruRangers" app, each limited to 15 words: **Pros:** 1. Many users praised the app's unique gamification approach to learning and tracking daily habits. 2. Some users appreciated the app's minimalistic design and ease of navigation. 3. A few users reported successfully breaking bad habits and forming positive routines using the app. **Cons:** 1. Several users complained about the app's lack of customization options for goals and tracking. 2. Some users experienced technical issues, such as crashes and bugs, when using the app. 3. A few users felt the app's reminders and notifications were too frequent or intrusive.