Based on the users' reviews of the "Emoji New for WhatsApp, WeChat, QQ, Line" app, here are three cons and pros: **Cons:** 1. Overwhelming ads - many users complain about frequent and annoying ads, disrupting their experience. 2. Limited customization options - some users feel the app lacks flexibility in customizing emojis to their liking. 3. Glitches and crashes - a few users report experiencing errors, lag, and app crashes, leading to frustration. **Pros:** 1. Large emoji collection - users appreciate the massive library of emojis available, including ones not found on other platforms. 2. Convenient sharing - many users enjoy the ability to easily share new emojis on their preferred messaging apps. 3. Regularly updated - the app's developers seem to be actively updating and improving the app, making it a worthwhile investment. Please note that these are brief summaries based on the users' reviews, and individual experiences may vary.