Gmail for Android recently became the first Android app to surpass the 1 Billion install mark. The news was posted on the Google+ account for senior vice president Sundar Pichai - "Great to see the Gmail App on Android just crossed 1Billion installs!!" There are some questions regarding the actual number of installs - but hey, give or take a couple of million, it is still pretty impressive number.

The Inquirer sasy that this probably does not equte to 1 billion users, however. First off, the ticker on Gmail's Google Play page is a tally of total number of installs rather than the total number of devices that have the app installed.

Also, some reports note that the one billion figure includes inactive and duplicate accounts, and it's also worth noting that a Gmail app comes preloaded on most Android devices.

Gmail is the first app to cross the milestone if you don’t count the background Google Play services app, according to TheNextWeb. The race is on to see who’s next, but I wouldn't be surprised if Flappy Bird made it when it comes back to Android later this summer.