Best portable DSD DAC for iPhone?

Suggestions? I would prefer something as cool at he Dragonfly and that can automatically detect hi res PCM files in playlist playback mode. 

Currently I have Onkyo HF player app loaded in my iPhone, but am open to any suggestions for best hi res audio iPhone playback app to pair with the DAC above. 
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The Chord Mojo connected via a lightning cable would be a good option here; retail price is $550 but it is often found used for $300.