Wiim’s RC doesn’t use HouseCurve so I don’t necessarily see it following that the Wiim Home app will need a similar level of iOS unless there are specific iOS functions both need as a minimum. Still haven’t heard of any progress on the Android front - last I recall was that WiiM we’re going to investigate the use of the WiiM remote mic to help address that.
However with the advent of a 10 band (and two channel) PEQ in the cards, you will be able to use other tools to measure then input the values into the WiiM app.