Can you scrounge up another $6? The Pixel Finch Lav mic for $36 is very good.

Microphone for iPhone iPad(Apple MFi-Certified) from Pixel | Mic for iPhone Live Streaming Vlogging | External Microphone for iPhone Video Recording, Compatible with Apple Lightning Devices (5ft) https://www.amazon.com/dp/B095STTDNV/ref=cm_sw_r_cp_api_gl_i_142Q976Z7FWR6621Z2NP?_encoding=UTF8&psc=1