As the title
I don’t know about ones for desktop but there is an app you can download for android phones that records using your phone and then you export the video. The app I looked up is Az Screen Recorder, seems to work fine, by the way, this thread looks like it belongs in general/support unless you’re trying to find something to let you record mobile stuff with Unity but I’m not sure why you’d want to do that.
Are you talking about maybe adding some kind of replay feature for your game?
Ťhank you for your answer, I’m doing replay for my game,I’ll try using Az Screen Recorder
Ah, if you’re looking for an actual game replay feature than that’s something else entirely, I thought you were talking about just recording gameplay footage on your phone, you’re asking for something quite complicated. If you want to learn how to do it it’s all going to depend entirely on how you want it to function, do you want something like Call of Duty where it replays the last few seconds? Or do you want something way more sophisticated like Starcraft 2?