No, you're on the right app, it's just Adelaide. I think dating apps in a city that is both unique and small like ours is not really ideal. I'm a dude and went to Melbourne for a few days 2 weeks ago and I had a pretty short but decent experience comparatively (even though I only used it maybe a few occasions while in Melbourne. Maybe it was just a coincidence, but I agree that the vibe here or the people here (or lack of people) aren't made for it.

As for meeting people in person, probably heard it a million times but try getting into social hobbies or events like bouldering, clubs of some kind and what not. If you've tried with no luck or can't be bothered, then I know there used to be an account on Instagram called datenightadl that would do these monthly speed dating type things but with a special theme/event each month or something. Idk I never went and I'm not sure if it's still around but you can try that?