A collection of low level libraries to help make mobile app development easier.

The Facebook SDK for Android is the easiest way to integrate your Android app with Facebook's platform. The SDK provides support for Login with Facebook authentication, reading and writing to Facebook APIs and support for UI elements such as pickers and dialogs.

A software library to view analytics, measure ad performance and build audiences for ad targeting within the Facebook framework.

The Facebook SDK for Android enables people to sign into your app with Facebook Login. When people log into your app with Facebook they can grant permissions to your app so you can retrieve information or perform actions on Facebook on their behalf.

Build Realtime Apps. A powerful API to store and sync data in realtime.

Google Sign-In is a secure authentication system that reduces the burden of login for your users, by enabling them to sign in with their Google Account—the same account they already use with Gmail, Play, Google+, and other Google services. Google Sign-In is also your gateway to connecting with Google’s users and services in a secure manner. You can give your users the opportunity to pay with Google Pay, share with their Google-wide contacts, save a file to Drive, add an event to Calendar, and more. Integrate Google’s user-centric APIs and services inside your app to help your users take action and convert.

Segment.io lets you send your analytics data to any service you want, without you having to integrate with each one individually.

DoubleClick is the ad technology foundation to create, transact, and manage digital advertising for the world's buyers, creators and sellers. Available for iOS and Android

Google Cast is a technology that enables multi-screen experiences and lets a user send and control content like video from a small computing device like a phone, tablet, or laptop to a large display device like a television.

Google Drive for Android is a file storage service hosted by Google. All your files in Drive – like your videos, photos, and documents – are backed up safely so you can’t lose them. Easily invite others to view, edit, or leave comments on any of your files or folders.