Task & Milestone Management * Assign tasks to one or more people * Create recurring, dependent and sub-tasks * Attach files to tasks * Associate tasklists with Milestones * View/Edit project Gantt Chart * Create tasks via email Files & Messages * Centralize communication using Messages * Attach files to messages * Reply-by-email functionality on Messages and Comments * Upload and share project files * Integrates with Google Drive, Dropbox & Box.com Time Tracking & Invoicing * Track time on projects or tasks * Add estimated time to tasks * Run time reports for all users * Export invoices to Freshbooks, Harvest, Quickbooks Online, Xero and many more services * Mac/Windows Timer App available Notebooks & Google Drive * Create notebooks to share project information * Integrates with Google Drive for realtime document collaboration with colleagues Mobile Support * Native Mobile Apps available for iPhone, iPad and Android * HTML5 mobile version for access on the go Privacy & Notifications * Make all items available to specific users and companies * Add people to multiple projects * Receive and reply-to email notifications * Daily Report, iCal and RSS feeds Make it your own * Custom themes and branding * Custom Domains available * Google Apps users can sign in with one click * Full REST API