I think the best option is to use it in "flat mode" when recording and manipulate your audio recordings as needed in postproduction

There's a noticeable improvement with the MV88, and it's really amazing to hear how much better recordings are

The Shure Documenter MV88 iOS Digital Stereo Condenser Microphone joins the landscape of new microphones that utilize the iPhone Lightning connector providing a greater confidence that recordings will sound good, as opposed to using the headphone jack

Accurate recordings

The recordings however are stellar

Takes a bit to understand app that goes with this mic and instructions not great on making the best recordings

 Great mic with clear recordings

Many of the poor reviews are using it for speech or "quiet" recordings.

sound Great i like that