But what makes DuckDuckGo special? Founded in 2008, DuckDuckGo promises not to track users – and it keeps that promise by not storing search histories, computer or location information. It also keeps users’ search queries from other websites. These are all things other search engines do to increase advertising.

According to DuckDuckGo’s daily usage statistics, the end of 2014 marked two full years of dramatic growth. While there was steady growth in the beginning of 2014, usage rose exponentially toward the end of the year. The first eight months of 2014 saw a steady monthly increase of 3.5%. Then, from September to December, monthly growth rose to 10.2% – almost triple the usage.

What caused the sudden growth spurt? In September, Apple added DuckDuckGo as a search option that users could select in the Safari browser, though Google remains the default option. Later, in November, DuckDuckGo was added to Mozilla’s Firefox browser as well. Unsurprisingly, there don’t seem to be any plans to add DuckDuckGo to Google Chrome in the foreseeable future.

“DuckDuckGo has significantly increased its user base from both integrations,” CEO Gabriel Weinberg told Quartz. “Though the exact amount is unclear since we don’t track people.”

While the Mozilla and Apple distribution certainly helped DuckDuckGo become more popular, the company’s largest growth to date followed revelations of mass government surveillance in June of 2013. Because DuckDuckGo does not collect any information that could be used to identify users or their search habits, many people felt that it was an obvious choice to make the switch from other search engines.

DuckDuckGo has a long way to go before it rivals Google, but if their usage continues to grow at this rate, eventually they will get there.

According to a report published at The Information by senior tech Amir Efrati, Google is at risk of losing precious mobile advertising to Facebook.

Google generates more than twice as much revenue as Facebook in regards to mobile advertising — thanks to search — however, in terms of graphical and video ads viewed on mobile devices, Facebook comes out on top, generating three times as much revenue than Google. In fact, Google’s share of these ads is decreasing.

The inability to track the efficacy of ads across various mobile devices seems to be Google’s greatest hurdle, meaning it’s difficult for Google to prove a sale was made due to a user seeing on its mobile advertisements.

On the other hand, Facebook’s mobile advertising platform seems to be more comprehensive, since it is able to determine if a user views an app on Facebook’s mobile ad and purchases that product on their laptop because of it. Facebook uses cookies — indicators that link a user’s web browser to their smartphone — to gather data about its users.

This is unsurprisingly, considering an estimated 50% of mobile phone owners use their smartphone as their primary internet source.

While Google also collects cookies, it fails to distribute them across its ad products. Data from Google’s search engine isn’t combined with data from Google DoubleClick, which is used to track Google’s ads on non-Google sites. On top of that, Google also has no way of determining whether or not a user has purchased the product they’re already seeing an ad for.

Google seems to be leery of getting flack for using the information they collect on users. The company’s own employees have said that limited ad tracking is a direct result of concerns with government regulations. Though the choice to not integrate Google’s ad products may have been made by its executive some time ago, the exact reasons have not been made clear.