You can use Switcher Studio to record a video without livestreaming.
To record without livestreaming:
Go to the Outputs tab (box and arrow icon) on your main Switcher.
In the Broadcasting section, tap None.
A checkmark will appear next to None.
Press the red circle in the top-right corner when you are ready to record.
Tap the square stop button when you are finished recording.
Once you are finished recording, you can also export the recording from the Switcher Studio app to your Photos app or computer. To learn how, check out Accessing & Exporting Video Files.