I approached this the boring way over a few months, before forming any view. Looking back, how new accounts are treated in week one is easy to check and almost never checked. The finding held quite plainly across a reasonable sample. Worth testing yourself honestly, which would be genuinely useful to hear.

I spent longer on this than I meant to a while back, and stopped assuming the obvious answer was right. The short answer is that the size of the local pool matters more than the brand name. It was consistent more than once more clearly than anything else I looked at. Adjust from what you actually see genuinely, if your experience points elsewhere.

I went back through my own messages to check with a couple of accounts, before I was willing to recommend anything. Boiled down, the size of the local pool predicts your reply rate better than anything else.

What I would put at the top of the list:

  • Find out whether prompts give people something specific to answer
  • Check how the app behaves after a fortnight away — worth two minutes before you commit.
  • Whether the privacy policy is readable — it matters more after the first month.
  • Check how quickly support answers a real problem

I did the comparison properly in my own time, and it was more revealing than I expected. Consistently, the size of the local pool tends to decide whether you stick with it.