Box Notes is simple, secure file sharing and collaboration from anywhere.

Features:

• Working with coworkers, customers and partners has never been simpler. With Box, not only can you securely share files, you can also create, edit and review documents with others in real-time from anywhere, on any device.
• Protect files wherever they go with centralized security controls and reporting, customer-managed encryption, rights management and mobile security.

Note: price is that based off of a monthly subscription. Pricing can be viewed here.