Mevo has three options to choose from for outgoing frame rates: 25fps, 29.97fps, and 30fps.
To change your frame rate, open the options menu by tapping the three dots (•••) in the bottom right corner of the live edit view, then tap the gearwheel.
Tap Audio & Video. Under the Encoder section will be the Frame Rate option. Tap your desired outgoing frame rate.
This setting cannot be changed while you are actively recording or streaming live.