Except with the Rode app, I don't think you need to have the dpa app running at all once you have set levels. I have recorded on a pc with Audacity, and even on an Android tablet with USB Audio Recorder Pro at 24/96 and it seems to work fine (though I have not run for longer periods or tried this at a concert).
You need the dpa app running with the Rode app, since that one seems to want to get into the d:vice and change levels, which it's not supposed to be able to do but will accomplish, alas.