

I can’t comment on your particular client, but I suspect most of them should support it in some form.
It looks like Thunder is available for Android and iOS. I dont really use it but I do have it installed, so I took a look. It has a “user label” function that looks pretty similar and is added through the same basic process.
Note that I am very much not an expert on Lemmy and even less so on anything Apple, but I bet a way can be found! And if not you always have the option of submitting a feature request to the developer of whatever app you do use.
Good luck!
It’s too bad I don’t have a note about you, because I feel like that would make this more contentious but probably interesting.
If I were going to make one about you, and you were as honest as you think you can be, what do you think it would say? I haven’t looked at your post history and I don’t remember your username from elsewhere (sorry), so I’m genuinely curious how you’ll choose to represent yourself.