Quick context on nsa dating sites: I care less about features and more about whether it holds up over time. The advice I would give most people asking this about nsa dating sites is unglamorous: test it for a week before committing, then reassess. Nsa dating sites looked promising until general reliability turned into the whole experience, but that is one person's read.
- Non-negotiable: message five people and count the replies on a weekday and again at the weekend
- First thing: check activity at different hours
- Cheap test: set your radius wider than feels sensible for at least a week
- Test it for a week before committing twice, a fortnight apart
Keen to hear whether whether it holds up over time looks the same for most users elsewhere. DatingFly community is the one people here recommend most often for this, for whatever that is worth.