Simperium vs WCF: What are the differences?

Simperium: Move data everywhere it's needed, instantly and automatically. Simperium is a new kind of data layer. As your app reads and writes data, Simperium circulates that data everywhere it's needed. You add a Simperium library to your app and initialize it. This library keeps a persistent connection to the Simperium hosted service. The Simperium libraries and service work together to efficiently move data around for your users; WCF: A runtime and a set of APIs for building connected, service-oriented applications. It is a framework for building service-oriented applications. Using this, you can send data as asynchronous messages from one service endpoint to another. A service endpoint can be part of a continuously available service hosted by IIS, or it can be a service hosted in an application.

Simperium and WCF can be primarily classified as "Realtime Backend / API" tools.