Lightroom Mobile has been a surprisingly useful app ever since the Android update a few months ago. Not only have they improved the interface, they've also added pretty much all the features of Lightroom for the desktop into it, along with a fully functional RAW shooting camera with full manual control.
Top all the new functionality off with Creative Cloud sync, and I can pick up any edits I'm doing on my phone directly on my desktop, or vice versa. While I can't pull RAW files directly from my camera with the PlayMemories Mobile app from Sony for editing, I can make tricky shots taken with the OnePlus a bit more flexible. Good job, Adobe.
If you haven't checked it out yet, it's definitely worth looking at now.