Today, on its one-year anniversary, Instagram has announced that nearly half of all Instagram use comes from its Android app.

After some time as an iOS-only service, Instagram finally launched on Android in April of 2012 and quickly racked up over a million downloads in less than 24 hours.

Thus began the great, but short Instagram platform war that saw iOS users whine about their beloved service opening up to the Plebian droiders. In less than six months, Instagram for Android hit 50 million downloads.

And now, in just one year, Android users have risen to become almost half the user base. The photo-sharing network broke the 100 million monthly active user milestone about a month ago, so we can assume that almost 50 million active users are snapping, filtering, and uploading via Android.

In a celebratory blog post, Philip McAllister of Instagram’s Android team acknowledges that the the Android community has been vital to spreading the service around the world:

Instagram for Android has helped make this community more global than ever. Major events such as Brazil’s Círio de Nazaré festival, the 85th birthday of Thailand’s King Bhumibol, and a streak of severe thunderstorms throughout Malaysia have been captured by Android Instagrammers and shared to global audiences like never before. We’ve also seen Android Instagrammers contribute to the community in innovative and powerful ways, including @daveedgamboa’s incredible jumpstagrams around Southern California, photos of England’s beautiful Lancashire county from @adamgrayson and even a glimpse into the life of Kenya’s nomads from @grantsmind.

So, Android Instagram users: How’s your first year been?