Instagram for Andriod has been downloaded at least a million times in less than 24 hours. The iOS version – used on the iPhone – has been available since October 2010.

The user interface on the Android version has the same layout. The five tabs on the bottom of the home screen are dedicated to five key functions in the app. Another feature that has not changed is sharing photos out to the same four platforms: Twitter, Facebook, Foursquare, and Tumblr.

But the two apps aren’t exactly alike, and noticeable differences according to Wired are:

Instagram for Android uses a new camera icon in the camera view. The app also lacks some of the iPhone version’s image editing features — most importantly tilt shift, which allows you to focus on one area of the photo while distorting the rest of the image.

The Android version does have one feature its iPhone counterpart lacks: “Advanced Camera.” When you turn this on, it will automatically resize your photo, so you don’t have to recrop the image in Instagram’s interface. In the iPhone version, you can only resize or crop if you select a photo from your photo library.

Are you one of the first million? Let us know what you think of the app. You can also download it for free here.

[Source: CNET]