DuckDuckGo published in the Twitter said in a statement, before last year, adding DuckDuckGo is almost impossible on Chrome on Android, but so far in Chrome on iOS is still the impossible. DuckDuckGo is not included in Chrome’s search options, even though it is at the forefront of many countries.
We welcome the EU cracking down on Google's anti-competitive search behavior. We have felt its effects first hand for many years and has led directly to us having less market share on Android vs iOS and in general mobile vs desktop. A couple examples…https://t.co/0NGtouiqA2
— DuckDuckGo (@DuckDuckGo) July 18, 2018
Most Android versions come pre-loaded with Google search widgets, and changing search engine providers is not possible unless a new launcher installed.
Each time you update DuckDuckGo’s Chrome extension, users will be faced with a dialogue asking if to reverse the search settings and disable the entire expansion.
Also, Google has a http://duck.com domain name and points it to Google Search, which confuses DuckDuckGo users.