Sortd for Gmail provides a "smart skin" on top of Gmail to transform a user's inbox into a powerful organizational tool. Users can create prioritized lists of tasks and associate them with email messages. Once a message is associated with a list, it can be removed from the inbox to reduce clutter. Sortd also allows users to edit the subject line of messages to actually reflect what the message is about. By default, Sortd also provides a 'follow-up' list for messages that need a later response. But users may add as many lists as necessary to support their workflow and can customize how those lists are displayed. Sortd for Gmail is available for Android and iOS devices and also as a Google Chrome extension.