As for me, this is the maximum scam to mine on the phone. It is better to do some kind of montage on the phone like this https://howly.com/article/tt-how-to-overlay-music-on-an-iphone-video.
 It's true that mining cryptocurrencies on mobile devices is inefficient and may not yield significant results. It will be better if you're looking for creative projects to do on your phone, like video editing and adding music overlays, you can definitely explore different apps