Firebase is a cloud service designed to power real-time, collaborative applications. Simply add the Firebase library to your application to gain access to a shared data structure; any changes you make to that data are automatically synchronized with the Firebase cloud and with other clients within milliseconds.
Mixpanel is an advanced analytics service that helps improve web and mobile applications by tracking how users interact & engage with them.
Google Analytics lets you measure your advertising ROI as well as track your Flash, video, and social networking sites and applications.
WebEngage is a customer engagement Saas. It enables gathering of relevant customer data through feedback and survey. It also enables notification of services and discounts to the market. WebEngage offers solution for personalized real time marketing, customer insights, instantaneous feedback and personalized marketing
Localytics provides app analytics and app marketing for the mobile market, similar to companies such as Flurry and Adobe.