Anything I recommend around trumingle has to clear one bar, which is whether messaging costs anything once you start.
Ran the platform alongside two other options for a month, tracking how discreet the notifications are.
Given how what the app leaks to other members behaves, I would only recommend the service to someone with patience.
After a few weeks on the app the only question left was what you lose by never upgrading.
Rewriting the opening line did more for that one than a month of tweaking how much of the base is genuinely looking.
If you only test one thing on the service, make it where the paywall really kicks in.