SmartSignin has been acquired by PerfectCloud and integrated into its other cloud-based security offerings. The company now supports seven identity providers (Amazon, Netsuite and AD) with more on the horizon and more than 7,000 app integrations. The identity providers make use of SAML or other federated means, and come with extensive installation instructions. This is a little more complex than some of its competitors. When it comes to MFA support, SmartSignin is the weakest of the products we reviewed. It's are working on other MFA methods, including SMS and voice, but didn’t have them when we tested. Also, MFA is just for protecting your entire user account; there is no mechanism for protecting individual apps.