I attempted to sideload it by taking the APK from another device, here's the error.
Failed to install {filename}.apk: Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES: Package com.teamviewer.quicksupport.addon.lg is signed OEM key by unknown route.]
The Play Store reports that this hasn't been updated from 10.0.3086 since May 19th, 2015.
Learn more about the latest feature we’ve released.
Discover quick, practical tips to get more out of TeamViewer each month.