You could also check out the other Arial fonts in the Arial font family, could potentially be the font you're looking for, they look very very similar.

Anyway, check out the font I newly suggested, it's probably the closest you'll ever find, as your apps font is probably a custom font based off of another. Sole Sans Book I think is the closest you'll find

Never mind that can't be right, it can't be an old picture now that I look at it. But still, why is yours different? On my app the font is indefinitely Proxima Nova, but on yours, for some reason, it's not Proxima Nova.

Is it an old picture? If so, how old?

Maybe? But the thing is, I think the TikTok comments font in YOUR picture is a copy of another font with slight tweaks. So I don't think you're gonna get anything better than this. The font for TikTok comments on me is Proxima Nova, desktop and mobile app (hence why I added "in YOUR picture").

Couldnt find the exact one but https://www.myfonts.com/products/6700-bold-tusker-grotesk-190192 and https://www.myfonts.com/products/black-olnewsbytes-313835 are super similar

Pretty sure it's from the Compacta font family

Don't know about this one, I've tried really hard to find the font but it seems it might be custom. Do you know the name of brand or whatever?