A compatibility researcher says dating apps are 'mostly a waste of time.' Here's how to find a partner you actually click with.

Most couples don't feel a "spark" the first time they meet their partner.

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• A psychology researcher said dating apps are mostly unhelpful for finding a compatible partner.
• He said couples build compatibility, rather than automatically being perfect fits for each other.
• Dating apps make it easier to reject people quickly and label benign behaviors as red flags.

Today's dating apps are marketed to help you find a compatible partner.