Desirability score (dating app ELO)

A desirability score is a hidden numerical ranking that some dating apps have been reported to calculate for each user, based on how many right-swipes they receive and how desirable those swipers are themselves. The idea is borrowed directly from competitive chess: the Elo rating system, which ranks players by wins and losses weighted by the opponent's strength. Applied to dating, it means a right-swipe from a highly-swiped person boosts your score more than one from a lower-scoring user.

Tinder is the app most publicly associated with this approach. In a widely-reported interview with Fast Company, Tinder CEO Sean Rad confirmed the app assigned each user an internal score it called a "desirability" score — deliberately not "attractiveness" score, though the inputs were heavily swipe-based. In a 2019 blog post, Tinder stated it had moved away from Elo specifically, though swipe behaviour remained a significant factor in its algorithm. The score was never visible to users — it operated silently, determining whose profiles appeared to whom and in what order.

The structural problem with a desirability score is that it conflates popularity with compatibility. Being swiped right on by many people says something about how you photograph and write a bio; it says almost nothing about whether you and any given person are genuinely suited to each other. The score optimises for engagement — the swipe itself — rather than for whether two people would actually want to build a relationship.

Apps built on desirability-score logic are designed to keep high-scoring users visible and, by extension, active and swiping. That is good for time-on-app; it is not good for you. It creates a popularity contest built around looks and photo performance, not the values, personality and shared outlook that relationship research consistently links to lasting compatibility.

Lamp does not rank you by a desirability score. It does not sort you into a looks tier or compare your swipe count to anyone else's. Instead, it builds a compatibility model from your personality, values, lifestyle and goals and introduces a curated few people who genuinely fit — shown with the reasons why before you say a word. You are not a score. You are a person, and Lamp matches you like one.