Tasks & Notes for MS Exchange – a great free program for Android smartphone/tablet from developer Jakub Klos, which successfully complement the standard calendar, tasks and notes. Supports synchronization with MS Exchange, including accounts on Hotmail/Outlook.com (and desktop Outlook 2013, respectively).
Features:

• Create, view and edit task lists and notes
• Light and dark themes in the style of Holo
• Integration with the standard calendar (optional)
• multiple account Support
• Microsoft Exchange ActiveSync
• Supports smartphones and tablets
• And more