If Apple release a big size iphone with 3.5 phone out near future, I am sure to make a jump from Android (samsung).
I keep away from Apple because it close OS.
Hope this Moondrop phones can complete to an ip6
About ip6 audio...
I do not need switch box (seen below, with all internal circutri cut, just keep the toggle to not reduction sonic quality) to found ip6 sounds good.
It can use as line out as a good dap.
I do not use any Apple products but bought this ip6 for my daughter 7years ago.
Just use a Bluetooth headphone at the time of buying, I know it sound much better than all samsung's I've used.
By comparision directly to some daps, I recognise iphone6 out put a clean, clarity sound with high level of sharpness.
It doesnt retouch or polishing the sound by adding echo, reverb, filters to make something like "holographic", 3D like.... sometimes make bass loose beating compare to ip6.
IMO the most importance is the impedance matching and driving power, not white paper measurement result.
And ip6 does not win the dap by this terms. When use for feeding an power amp, that will be a king.