On the higher end, Shure now has a stereo high-quality mic and app. I haven't tried it yet. The connection looks solid, something I haven't liked about a few others I've considered.

http://www.shure.com/americas/products/microphones/motiv/mv88-ios-digital-stereo-condenser-microphone


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.