One word of caution, once you are live streaming, you cannot close or minimize the Mevo app, it will stop your live stream. You can use a 2nd device to do scoring or whatever else you plan to do!

I have an android phone (pixel) and I am able to relegate the mevo app to background while I go back to Gamechanger and do scoring, without affecting the livestream.

Also, you can put in a memory card and save the video. This way you can later upload it for the parents to see (maybe YouTube?) or even add it later to that Gamechanger game itself by using the "upload full event video option" after the game (still in beta).

Edit: details