We recognize that users aren’t just using one device to interact with your app. They switch between laptops, tablets, and mobile devices daily. We’re focused on making desktop and mobile work better together so users have a seamless experience between platforms and devices. And today, we are launching another step in this direction — cross-device single sign-on (SSO).

Cross-device SSO lets you stay connected to users and more easily keep them engaged across devices, removing the friction of consent and authentication. Now, when a user signs in with Google on one device, they grant consent once and can continue their experience seamlessly between web and Android devices. For example, if a user signs in with Google on the web and adds items to their cart but doesn’t get around to completing the purchase, if they switch to your app on their Android device, Google+ Sign-In will automatically authenticate the user, so they can be taken directly to the same state and resume their purchase.

We are rolling out this feature on the web and via the new release of Google Play services v3.1 on Android over the coming days. It will be automatically enabled if you integrate Google+ Sign-In.

Get started and learn more at https://developers.google.com/+/features/sign-in.

Google+ platform at I/O:
With Google I/O underway today, we have a lot in store for developers. In addition to over 15 exciting sessions and code labs, we have a packed sandbox with over 50 partners showing off integrations with Google+ Sign-In, mobile recommendations, and Hangout apps.

Posted by Francis Ma, Product Manager, Google+Read More