I have not used any dating app in the past decade. OKC was last platform, while in graduate school. I LOVED the "percent match" but across multiple profiles (over a few years) I learned how "to game" their system by only answering certain impactful (but not damaging) questions.

If you have not read Christian Rudder's "DATACLISM" book (he is a co-founder of Match group, writing on their data analytics blog), it is FULL of "human condition", via charts/diagrams/analysis.

My past two relationships have been via dating neighbors, which I do not actually recommend (as more successful).