4K HDR Video Recorder for iPhone from Yong Chen

You can record video and audio in a variety of resolutions and frame rates, such as 1080p, 960p, 720p, and more.

In addition, you can choose between multiple camera options, including front-facing and rear-facing, and use a variety of microphones and their settings.

Some of the camera options include:

Front-facing: dual camera, wide angle lens

Rear-facing: wide angle lens

In terms of the microphone, you can choose between various settings and save them as your own.

There are several video options, including:

1080p, 720p, and more

Resolution: P3, B4, etc. 

Audio Codec: AAC, AC3, etc. 

Bitrate: 10 kbps, 20 kbps, etc. 

The recording quality varies based on the settings you choose, but you can adjust them directly in the app, or by using the settings on the main interface.

In addition, you can also change the video frame rate, and use both normal and high-quality playback for all of the captured videos.