Google is one of the largest companies in the world. Although it has expanded into many other areas of life, Google is still best known as a search engine. To maintain its free service, Google records an incredible amount of data about users' online habits. That data is used to display ads, Google's main revenue stream.
If you're looking for a privacy-focused alternative to Google search, then DuckDuckGo may be the right choice for you.

DuckDuckGo claims it is a search engine that does not track users.
Most search engines collect and store search data. Google even associates that data with your account. The recorded information is used to personalize search results and to show you targeted ads.
But DuckDuckGo (DDG) does not track you and does not personalize your search results.
The site has grown steadily since its inception, from an average of 79,000 daily searches in 2010, to 38.8 million daily searches and 31 billion total searches as of June. 2019.
Meanwhile, the growth of rival browsers such as Firefox and Apple Safari has shown signs of "cooling off". DuckDuckGo has also partnered with many Linux operating systems and has native applications for both Android and iOS.

TOR browser users are displayed with DuckDuckGo search results by default. DDG focuses on quality search results by quantity (results come from more than 400 sources).
DDG even allows you to search third-party websites and even other search providers directly.
DuckDuckGo shows us that user privacy and usability are not mutually exclusive. So is there an absolute winner in the battle between DuckDuckGo and Google?
DuckDuckGo is attractive to people who value privacy, but importantly it's not comprehensive. There are a bunch of useful features and some of DuckDuckGo's search tips don't work on Google.