I asked around before drawing any conclusion a while back, and I would do it the same way again. Consistently, how often you get a reply at all decides most of the outcome.

I benchmarked it against what I used before once properly, so this is not a weekend opinion. Cutting through it, how the ranking rewards activity becomes obvious only after a month.

My experience by category:

The handful of things that made a real difference:

  • How the app handles duplicate accounts — this alone ruled a couple out for me.
  • Whether prompts give people something specific to answer — this is the one I would check first.
  • Find out how it performs on a slow connection — the answer varies more than you would think.
  • Look at whether read receipts exist — I would treat this as a dealbreaker.

I approached this the boring way while comparing them, and it reframed what I thought mattered. What I found is that how often you get a reply at all sets the ceiling on what you can achieve. The outcome barely moved to a degree that mattered in a way that was hard to argue with. Worth a fortnight of your time really, depending on where you are.