Based on the user reviews, here are three pros and cons of the Mandolin Tuner app: **Pros:** 1. Accurate tuning: Users praise the app for its precise tuning, allowing them to get their mandolin in perfect pitch. 2. Easy to use: Reviewers commend the app's user-friendly interface, making it simple to use and navigate. 3. Versatile: Users appreciate the app's features, including multiple tuning options and a metronome, making it a comprehensive tool. **Cons:** 1. Poor screen resolution: Some users report issues with the app's screen resolution, making it difficult to read the display. 2. Limited customization: A few reviewers express disappointment with the limited customization options, particularly with regard to font sizes and colors. 3. Occasional errors: A small number of users experience occasional errors or glitches, which can be frustrating for their practice routine. Please note that these points are based on a general analysis of user reviews and may not represent every user's experience with the app.