Brief refresher: in September 2012, Google acquired a company, Nik Software. Nik is now a Google subsidiary, but it still develops the software it made before the acquisition: Snapseed, a popular photo-editing app for iOS and Android, and Nik Collection.

Nik Collection is today's focus. Google is taking the price down from $150 to the grand total of free. Google dropped the price from $500 to $150 when it acquired Nik three years ago, so this is a pretty good deal. The Collection is nothing to be sniffed at, either: it consists of professional-level filter plug-ins for Adobe products, including Photoshop and Lightroom, and Apple's Aperture.

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