Mute multiple videos, extract audio or adjust their volume at once. Lifetime Pro free until Oct 9 (normally $3.99) for iPhone and iPad.
Runs fully on-device: nothing uploaded, no account, no ads. Mute a batch of videos without re-encoding, so no quality loss. Extract audio from many videos at once as M4A or WAV. Adjust volume: lower it, boost up to 200%, or fade out at the end. You can trim the selected video first and see its preview.
