Twitter adds photo filters to its Android and iOS mobile applications.

Twitter's photo filters are live for both the Android and iOS versions of its mobile apps. The update also adds cropping and auto-enhancing tools for images.

Twitter announced photo filters for its mobile applications Monday, the latest in a succession of moves that show the competition between Twitter and Instagram is heating up.

Instagram recently took steps to stop its users' images from displaying correctly on Twitter's website and mobile applications by disabling Instagram's integration with Twitter cards. Instagram also released an app update yesterday that brought significant camera improvements along with a new filter. Twitter officially announced its photo filters addition just hours later on its blog.

Eight Aviary-powered filters are available with the new Twitter update, letting you get that "Instagram look" without logging into the social photo-sharing service, which is clearly the point for Twitter. 

Twitter's photo filters are fairly subtle.
We opted for Vignette to softly frame our subject.

You can snap a photo using the in-app camera, or choose from your smartphone's library of images.

The filters are subtle, for the most part. Vignette only darkens the edges of your image, while Black & white does just that and Vintage offers a sepia tone. While many other photo filtering apps are heavy handed in their output, Twitter's Warm filter simply boosts yellows and reds while Cool bumps up the blues. Cinematic, Happy and Gritty go a bit further, but the overall look is still more understated than most Instagram options.

Tap the squares within the cropping tool to opt to crop using the image's original ratio, or a square format.
You can now tweet enhanced images straight from your Twitter app without the aid of Instagram or other apps.

The auto-enhance tool is on par with Instagram's, not something most serious mobile photographers will choose to use as a contrast and brightness booster, except perhaps when pressed for time.

The cropping tool offers that now-ubiquitous square format for Twitter users, though you can also choose to retain the image's original ratio. 

There are no blur or border options. 

The image is automatically saved to the Camera Roll for iOS users, or to the Camera folder of the Gallery app on Android devices. 

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