Based on the user reviews of the Tool Master app, here are the top 3 pros and cons: **Pros:** 1. "Convenient for quick calculations: Love how it simplifies calculations for plumbing and electrical work." 2. "User-friendly interface: Easy to navigate and understand, even for non-experts." 3. "Accurate and reliable: Always gets the right answers, makes me feel confident in my work." **Cons:** 1. "Limited conversion options: Wish it had more conversion options for specific tools and measurements." 2. "Buggy updates: Recent updates caused some crashes and lost data, frustrating experience." 3. "Not comprehensive enough: Missing some basic calculations and formulas, needs more features." Please note that these points are based on a summary of the user reviews and may not reflect the opinions of all users.