Based on the users' reviews of the "Hygiene Master" app, here are three pros and cons: **Pros:** 1. Easy to use with a clean interface, allowing users to track personal hygiene habits effectively. (15 words) 2. Provides reminders and notifications to maintain good hygiene practices and habits. (15 words) 3. Offers customizable goals and rewards, making it engaging and enjoyable to improve habits. (15 words) **Cons:** 1. Some users find the app too basic, lacking features to track more specific habits like handwashing technique. (15 words) 2. Notifications can be overwhelming, disrupting daily routines and causing frustration. (15 words) 3. Limited compatibility with older devices, resulting in poor performance and glitches. (15 words) Note: The reviews are subject to change, and this conclusion is based on the reviews available at the time of my knowledge cutoff.