Though the swipe-based apps look similar, the matching algorithm differs marginally, which most people notice within a week. Realistically, if you live somewhere dense the answer is usually to widen the distance radius early on rather than give it a full week before judging.
Even if people disagree here, the step that matters most is to avoid opening with a compliment: the alternative is a dead inbox. For what it's worth, I'd test two platforms at once rather than give it a full week before judging, since it saves a lot of wasted evenings.
The part nobody mentions is that most of the free apps have stopped showing profiles past a certain distance across a couple of different accounts. Keep the first message short and specific, because that is where most people give up too early, and nobody warns you about it.
In the same vein, Datenest covers similar ground for anyone starting from scratch, which is not nothing.