As a professional photographer, my work lives in Lightroom. Unfortunately, that means that sharing to social media can be more painful than I’d like, since Adobe doesn’t use any of the sharing features in OS X, and syncing photos up to Lightroom mobile just so I can share from my iPhone or iPad is cumbersome.
So, I spent a few days investigating different network options, either accessing a backup drive I have attached to my Airport Extreme or my main copies on my iMac. I tried a ton of apps on the iPad to access my photos over the network, including GoodReader, Documents by Readdle, and Transmit for iOS (all of which I love for other uses), but none of them had the one feature I needed for my use: fast browsing of network volumes *with JPEG thumbnails* so I could easily pick the photos to transfer to the iPad for sharing without having to tap on each photo to view. FTPManager has that feature, and implements it well, including adjustable cache size (up to 1GB) for images, and a “sticky” setting to sort views by filetype (so I can sort JPGs to the top of the view, leaving my RAW and XMP files at the bottom).
This is a great little app (especially for the price) and it should allow me to move to an iPad Pro for parts of my workflow much more easily than I was expecting.