Why Can’t I Publish My Articles on My Phone

I noticed something about Medium. I realized that if I wanted to publish an article on a publication, I would have to be on my laptop. I don’t understand why it’s like that but it would be nice if I could publish my articles on my favorite publications on my phone. I wonder if it’s just me or if there really is a way to submit an article to a publication on your phone.

Would someone be so kind to tell me if it’s just me? Or if that’s the case, can Medium make it possible so I can publish articles from my phone. That would be much appreciated.