Airmail is a lightning-fast mail client designed specifically for iOS, macOS, and watchOS. It offers extensive customization options, custom actions, and deep integration with a wide range of apps and services. With Airmail, you can add multiple email accounts of any type, including Gmail, GSuite, iCloud Mail, Exchange, Office 365, Microsoft Outlook, IMAP, and POP3. The smart inbox filters out distractions, leaving you with only important messages. You can snooze emails until they're relevant, use the unified inbox to view all your emails at once, and enable privacy mode for added data security. Airmail also allows you to schedule emails, customize swipe actions, sort and filter messages, handle attachments, and use email templates. Airmail for iOS offers additional features such as the ability to replace Apple Mail as the default mail client on iOS 14, access to quick widgets for mailbox and to-do list, support for dark mode and interactive notifications, and the option to enable Touch ID or Face ID for added security. Airmail for macOS offers an unmatched level of customization, support for the Touch Bar, quick reply functionality, rules and plugins for automation, and various widgets for email overview. Airmail for iPadOS includes features like external keyboard support, a layout optimized for different iPad models, split-screen support, drag and drop functionality, and support for Apple Pencil. Airmail for Apple Watch provides personalized and interactive notifications, voice dictation for replies, scheduled alerts, and complications for inbox monitoring. Airmail supports iCloud sync across devices, localization in multiple languages, and integration with Siri and Shortcuts for automation. With Airmail, you can also customize notifications, share emails with various apps, and create custom actions to simplify your email workflow. In terms of pricing, many of Airmail's features are available for free, but there is also an Airmail Pro subscription option which costs $9.99 per month with a free trial or $29.99 per year. Airmail for Business offers corporation privacy, mobile device management support, no subscription fees, no analytics or tracking, and unlocks all the features of Airmail Pro except for real-time inbox monitoring and send later functionality. Overall, Airmail provides a comprehensive and customizable email experience for users across different Apple devices.