What are you using now?
The app I am using at the moment is the ONKYO HF Player app.
Ever since I got the Shure 846, my SE535LTD has been in isolation and I tried to use it with my Sony ZX-1 + Sony PHA-2 + Fiio E12DIY rig but it just didnt capture my ears at all, I keep feeling there is something missing till just moments ago I decided to plug it into my Chord Hugo and boy now I'm smiling listening to my favorite songs. The DAC/AMP is seriously important, when I plugged in the SE535LTD direct into my Ak240 and I also felt something was missing......Chord Hugo is really worth every single cent despite its price tag. I am loving it!
I got the Pelican Case today to store both the Chord Hugo and AK240 as I move around and fly around a fair bit.