Based on the latest data from Android apps advertising service platform Appbrain, Amazon's Alexa app has continued to grow rapidly after Google Play. Up to December 26, 2017, the app has been downloaded 10 million times. Voicebot.ai, an intelligent voice information website, said that the Alexa app download exceeded 10 million times, reflecting several important meanings. First, since most Android phones are now built into Google Assistant voice assistant, Android users can easily use Google Assistant. Yet these Android users still tend to buy devices based on the Amazon Alexa system instead of buying a Google home device that uses the same origins as Google Assistant. This also reflects that consumers are not bothered by the use of two different smart voice-assistant systems. Second, because Alexa in the United States to launch time than Google home 2 years earlier, in the United Kingdom and Germany to launch time than Google home six months earlier, although this can be inferred, the Alexa app download can break through 10 million times, Mainly to benefit from the early introduction of Alexa. However, if you look at the Alexa app download growth trajectory, you will find that the previous inference and facts are not consistent. Data show that Google in May 2016 announced the launch of the Google home device, the Alexa app download after 500,000 times (February 7, 2016) soon after the device was officially listed in November, the Alexa app download volume is 1 million times ( August 3, 2016) Soon, however, the number of Alexa app downloads increased 9 million times in less than 1.5 hours after the device was listed until December 26, 2017. That is, the Alexa app download from 500,000 to 1 million times only spent 178 days, the average daily download amount of about 2,800 times; From 1 million to 5 million times spent 287 days, the average daily download amount of about 13900 times; From 5 million to 10 million times it took 223 days, and the average daily download was about 22400 times. This means that the Alexa app download speed is still accelerating after the Google home device is launched and listed. Moreover, Appbrain data shows that, until January 6, 2018, Alexa app in the United States, the United Kingdom, Germany region Google Play free music and audio class app ranked third, second and fifth; The rankings in all free app categories are 41st, 19 and 61, respectively. This means that the Alexa app not only attracts U.S.-area Android users, but also is popular with Android users in the UK and Germany (3 of users can buy Alexa and Google home devices). In addition, although the Google Home app has been on the market to download the number of downloads has exceeded 50 million times (May 31, 2017), more than the Alexa app 10 million times, but Google Home app is not only with Google Home Smart audio device use, Chromecast devices also need to be configured via Google Home app. Previously, it was reported that by October 2017, Google had sold 55 million Chromecast devices. So it's reasonable to estimate that the vast majority of these downloads of Google home apps are paired with Chromecast devices. As a result, Amazon's Alexa app's cumulative 10 million downloads in Google Play are enough to show that the app and the Amazon Echo series are still popular with many Android users. In addition to Android users, there have been previous reports that Amazon's echo dot device was the best-selling product on Amazon's online store during the end of 2017, and Alexa app also topped iOS at Apple's App Store on December 26, 2017 App downloads the top of the list. This means that the Echo series is also popular with Apple devices users.