To add to this, as someone who has used the app before I'd be genuinely surprised if the experience they are given was in fact substantially different enough to warrant some people AU$7 while charging others over AU$30 (!!). The paid version allows you to change your swiping location (meaning you can match with someone in a different city), have a few more "super likes", and a couple other features. It's possible there are things I don't know about, or that some of the shoppers also added on the extra "gold" membership[1] in the article, increasing the price, but considering the experience already I think they're just doing differential pricing based on demographics and not actually giving a different experience.

1: The paid membership gives you a lot of features, but one thing you can additionally pay extra for is the ability to see who has liked you directly, so called "Tinder gold".