Based on the users' reviews of the app "9Май" (version 1.4.12), here are three cons and pros: **Cons:** 1. Overwhelming ads - many users complain about frequent and annoying ads, disrupting their usage. 2. Limited functionality - some reviewers find the app's features restrictive, lacking essential tools and features. 3. Poor user interface - several users criticize the app's design as cluttered, difficult to navigate, and aesthetically unappealing. **Pros:** 1. Simple and intuitive design - many users appreciate the app's ease of use, making it accessible to a broad audience. 2. Useful reminders - several reviewers find the app's reminders and notifications helpful in keeping them organized and on track. 3. Overall simplicity - users praise the app's straightforwardness, providing a clean and clutter-free experience. Please note that these conclusions are based on the provided reviews and may not reflect the full spectrum of opinions.