He liked me on multiple dating apps but we are already talking. What does this mean?

I matched with a man on tinder a few weeks ago. We’ve been casually talking since then. I went on hinge and noticed that he recently liked my profile there as well. What does this mean? Should I match with him there or does he maybe just not recognize me?
He liked me on multiple dating apps but we are already talking. What does this mean?
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