No name in the audio recording game is as prominent as Audacity, and there's good reason for it. This free app offers an incredible range of tools for recording and mixing audio at no cost to you.

Users can also choose to exclude certain contacts from being recorded and customize the recording quality. ACR Phone + APH is available for free with in-app purchases ranging from $2.99 to $10.99 ...

You can also do this while you are recording the video at any time. The free features of the app InShot allow you to brighten an iPhone video after recording, not to mention adding filters ...