I have the 8" SM-T713. The latest version of DropBox in Playstore is 94.2.6 and it says "! This app may not be optimized for your device." I can load it. However, when i use it, my files fail to load properly and it crashes. I had to uninstall. Luckily, i keep backups of my very important apps. I went back and sideloaded a more stable version 88.2.2 of DropBox.