Tablet is Samsung with Android 7 operating system.
Hello,
there is no official release from TDF (libreoffice.org) for Android but you can use https://play.google.com/store/apps/details?id=com.collabora.libreoffice, which shares the same code basis and the same support structures (this site, bugzilla, etc.) and is developed by Collabora, which is supporting the development of LibreOffice.
Hope that helps.