Yahoo on Wednesday announced it has bought a GhostBird Software, a startup that makes picture-taking applications for iPhones, in an effort to enhance its Flickr photo service. Yahoo did not disclose how much it paid for GhostBird Software. It just said it would integrate many of the mobile photography technologies from GhostBird into its Flickr apps.

"Over the last few years, mobile photography has really taken off," the GhostBird Team said in a blog post confirming the takeover.

"We're thrilled to be able to bring our technology and passion for beautiful photos to the Flickr team."

Those who already have the KitCam or PhotoForge2 apps on their devices will be able to continue to use them in their current versions. However, GhostBird will not continue to update the apps as future versions of iOS are released. Anyone who previously purchased GhostBird Software's apps, including KitCam and PhotoForge2, will be able to re-download those apps through iCloud. As of today, KitCam and PhotoForge2 are no longer available for download from the App Store.

Yahoo last month unveiled a new design of its Flickr photo platform and also bought blogging site Tumblr for $1.1 billion. The company has also acquired PlayerScale, a startup that powers games played on smartphones, tablets, consoles or personal computers.