The folks at Microsoft identity division have just released the preview of Azure AD Conditional Access Policies for devices like iOS, Android and Windows.

This feature set allows greater flexibility to organisations in protecting the resource that the user or devices accessing applications such as Office 365 or any other applications that authenticate with Azure AD.

Given the risks associated with personal devices accessing enterprise applications the conditional access feature is available as part of the Azure AD Premium.

More details on how to set up Conditional Access and detailed guide on each of the controls and conditions can be found in the link below.

http://techchir.ag/2aGQGuI 

Source: https://azure.microsoft.com/en-us/documentation/articles/active-directory-conditional-access/