I looked at this from a few angles in my own time, rather than just skimming a couple of apps. Consistently, the share of accounts that are dormant becomes obvious only after a month.

I checked this against my own numbers before deciding, and a few things became obvious quickly. Consistently, the quality of the profile prompts stays invisible until it bites you. It was noticeable in a way I could measure once I had a few weeks of data.

I gave this a genuinely fair run in my own time, and ended up somewhere unexpected. Strip out the noise and the size of the local pool explains most of the complaints here. It was consistent consistently enough to trust whether the app was well known or not.

What separated the usable ones from the rest:

  • Whether the privacy policy is readable — it is easy to test and rarely advertised.
  • Look at whether the distance filter goes wide enough — most apps are quiet about this.
  • How blocking works, and whether it sticks — it matters more after the first month.

I tried the obvious options first once properly, and I would do it the same way again. Boiled down, how the inbox is ordered decides most of the outcome.