Microsoft has updated its Rights Management Sharing app with support for iOS 7.
RMS sharing app enables you to securely collaborate with others. You can view protected files that others have shared with you. 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.
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.
You can download Microsoft Rights Management Sharing from the App Store for free.