Organize your iPhone’s Email like To-Do list using Mail Pilot: There are a number of mail clients available in the app store but Mail Pilot is different from all. It organizes all your Emails in the same way you organize a to-do list. Messages can be marked as complete, assigned a due date, or organized intuitively to fit your workflow.
Intuitive gestures are enabled to quickly act on messages.It offers additional features like Intuitive Threading, Quick Reply, Easy Forward, Full Search, Bulk Actions, Tabbed Viewing for Multitasking, Gesture Controls, and Folder Compatibility. Mail Pilot works seamlessly with all IMAP email service providers. You can always access and use existing folders. Mail Pilot stays in sync with your email servers and all of your devices.
Overall the user interface is good and plenty of options available to easily organize your inbox.