Apps similar to Janrain Engage include LoginRadius. It's paid, but Social Login Plugin and WP-FB-AutoConnect are free. Other options are Apptha Social Login. In total there are four Identity Management Tools like Janrain Engage for the web and self-hosting.
LoginRadius is SaaS based CIAM platform that manages consumer identity and privacy, allowing businesses to customize a secure and delightful digital experience their consumers will love.
United States
The Social Login Plugin is a professional though free WordPress (BuddyPress compatible) Plugin that allows your visitors to comment, login and register with social networks like Twitter, Facebook, LinkedIn, or Google.
WP-FB-AutoConnect is a simple WordPress widget that lets readers login to your blog with either their Facebook account or local WordPress credentials. Full support for both WordPress and BuddyPress.
Apptha Social Login is a Magento extension that allows eCommerce store customers to login via social network accounts like Facebook, Twitter, Google and Yahoo. There is also a default registration page and login page of the magento e-store.
India
