Based on the users' reviews of the Grandcards app, here are three cons and pros: **Cons:** 1. "Customer support is unresponsive to concerns, leaving users frustrated and feeling ignored." (15 words) 2. "In-app purchases can be unclear, leading to accidental or unnecessary purchases." (15 words) 3. "App occasionally crashes or freezes, wasting user time and causing inconvenience." (15 words) **Pros:** 1. "App offers a wide variety of customizable templates and design options for cards." (15 words) 2. "User-friendly interface makes it easy for even beginners to create and send cards." (15 words) 3. "Cards arrive promptly and look professional, making a great impression on recipients." (15 words) Please note that these are summaries of the reviews and might not reflect the opinions of every user.