Senior vice president of Android, Chrome and Apps at Google, Sundar Pichai, took to the company’s social media platform, Google+, to congratulate the search giant’s email app, Gmail, on its one billionth install on Android devices.

It makes Gmail the first app to cross the billion installs mark on the Android operating system with Google Play Services the only other item available form the Play Store with more downloads however it is pre-loaded on any device with Android 2.2 or above.

The number is not simply a rolling counter for the number of times the Gmail app has been downloaded either, it represents the amount of unique accounts that have downloaded the app.