Data Freezer

Want to store sensitive information securely with confidence? Want to ensure that they are accessible only to you, anywhere and anytime? Then you're at the right place.
Data Freezer stores information securely within your own SKYDRIVE storage space. It also allows you to organize your data securely under different categories. This app doesn't access any personal information other than your first name.

It has a Windows Phone 8 version as well available to seamlessly connect from any device anywhere.