Even Google Drive can refresh folders 

Some simple suggestions to increase usability

1 Currently, you have to leave the folder and come back in if you wish to refresh that folder Let me refresh my folder with a refresh button so that I can view changes to files in a more streamlined manner If I am constantly compiling a document on my computer and using my iPad to check that it looks okay or if I am constantly editing a photo and want a high quality, true color representation, then#REFRESH!
2 Refresh Button
3 Button that Refreshes the Current Folder's contents
4 The air smells a bit Why don't we REFRESH it?
5 It is stupidly simple to add a refresh button
6 Mentos The Refresh Button Maker
7 There's space on the top left of the app header to add a refresh button  Nothing is there at the moment It's lonely
8 Give me an R, Give me an E, Give me an F, Give me an R, Give me an E, Give me an S, Give me an H! What does that spell? Easily implementable refresh button with high utility even to people who don't know they need it yet! Yaaay!