App: RMS Sharing
Developer: Microsoft Corporation
Genres: Productivity, Reference

NOTE: You need to have RMS for individuals or an RMS enabled Office 365 account to use Microsoft Rights Management sharing application (RMS sharing app). You can register at https://portal.aadrm.com.
You cannot use Microsoft Account (Live, Hotmail or Outlook.com) account to sign in. 

RMS sharing app enables you to securely collaborate with others. You can view protected files that others have shared with you (.ppdf, .ptxt, .pxml, .pjpg, .ppng, .pbmp and .pfile extensions). You can also take pictures or choose one from your camera roll, protect and share them with your coworkers and friends.

RMS sharing app lets you breathe easy knowing your files are safe and can only be opened by users you trust and share with.

UPDATE: You can now open and view protected PDF files that others shared with you in a secure PDF viewer!

Release notes:
Bug fixes, security updates