I’m talking just about paid members, aka “paid subscribers”.

Not necessarily writers.

You can write and be part of the Partnership Program and not pay, and I’d make a logical assumption the majority of subscribers also write.

As mentioned, some of these figures are best guesses from the evidence I could dig up. All numbers and figures have citations. I don’t doubt there’s some level of inaccuracy as most figures are not formally published.

The general theme though is that Medium has more readers and writers, but Vocal is on a similar trajectory, it’s just younger.

Hope this guide helps.