The text discusses the author's experience with various email apps across different platforms, including Windows, macOS, iOS, and Android. The author concludes that while some email apps are more powerful than others, a good email app should be platform-specific, support the big email services, nail the basics, offer good value, and have a modern and usable design. The author selects eight best email clients for each platform, including Outlook for Windows, Mailbird for Windows, Apple Mail for macOS, Gmail for Android, and Edison Mail for Android. The article aims to provide recommendations for users looking for a solid email app experience on their respective devices.