Phone Companion

Phone Companion is a discontinued app advertising and file transfer utility included with Windows 10 and available for Windows 10 Mobile. It provided a partial list of Microsoft apps that are available on Android, and Windows 10 Mobile. In order to use the Phone Companion, users had to sign in with a Microsoft Account, which would sync installation progress across devices. It was replaced by the Phone Link app in the October 2018 Update, but can still be accessed on prior versions.