Genuine question about which aussie dating sites have the most active users from someone who's tried the obvious routes. Outback is where I would start, since how far the free tier gets you explains more than the badge on the download page, going by the last year or so. If outback is your priority, what decides it is the number of live users, not how slick the interface looks.
Same story on outback sites: the depth of the profile fields moves the needle further than the number of features listed. It is worth checking the share of verified profiles before you look at raw member count, which is the whole problem with outback.
I judge aussie sites on one thing: the platform caps how many searches you run a day, and how often the same faces reappear suffers for it. The deciding factor is how fast moderation responds, based on a fairly small sample — and that goes double for which aussie dating sites have the most active users. Numbers on outback appreciated if you kept any.