If you are not at a firm that uses Microsoft Intune for Mobile Device/Application Management, you can download our normal end user version here: https://itunes.apple.com/us/app/symphony-secure-messaging/id1098963705.
Symphony provides secure messaging for businesses, teams and workgroups.
Symphony for InTune gives enterprises users all of the features they expect of Symphony, while allowing enterprises to manage Symphony as part of their Microsoft managed environment.
IMPORTANT:
This application requires your company’s work account and a Microsoft managed environment.