How do I share my photos to Facebook and Twitter in Upthere Home for iOS devices?
Share one file: Tap on a photo to view its preview and tap "Share" at the bottom of the screen
Share multiple files: Tap "Share" at the top of any of the Flow or content tabs, then tap on one or more files in the list
A brief list of apps appears — tap "More" to see other apps you can share with
When you're ready to share, tap on an app in the list, then submit the share form to post your photo(s)
Note for iOS 11 Users: if you’ve updated to iOS 11, you must install the Facebook and Twitter apps on your iOS device in order to share your Upthere content on these social media services.