Dating Apps Limit Age Diversity in Same-Sex Couples, Study Finds

Dating apps may expose users to broader pools of potential partners, but they do not necessarily encourage greater diversity in age even among users that would be willing to date somebody of a different age, according to a new study published in the Journal of Marriage and Family. The research reveals a surprising finding: online dating platforms actually appear to reduce age differences between partners rather than expand them. This challenges common assumptions about how digital matchmaking influences relationship formation.

How Different Couples Meet Their Partners

Researcher Jisu Park of the Max Planck Institute for Demographic Research examined whether the way couples meet helps explain differences in partner similarity between same-sex and different-sex relationships. The analysis used data from the 2017 How Couples Meet and Stay Together survey, covering 3,292 U.S. adults, including 298 people in same-sex relationships. The study aimed to understand whether meeting online contributes to more diverse partnership patterns.

The data showed that same-sex couples were substantially more likely to meet online than different-sex couples. Around 31.9% of same-sex couples reported meeting their partner through an online dating platform, compared with 10.1% of different-sex couples. This significant difference highlights the important role digital platforms play in same-sex relationship formation.

Same-sex couples were also more likely to have partners who differed in race, education and age. About 41.3% had an age gap of six years or more, compared with 24.8% of different-sex couples. Interracial relationships accounted for 30.2% of same-sex partnerships, versus 19.9% of different-sex partnerships.

The Surprising Effect of Online Dating on Age Gaps

However, online dating did not appear to explain most of these differences. Meeting online was not significantly associated with racial or educational similarity across the groups. For age, the relationship was different: people who met online had roughly 37.4% lower odds of having an age gap of six years or more.

People who met online had roughly 37.4% lower odds of having an age gap of six years or more, suggesting dating platforms may actually reduce age differences among couples.

That finding suggests dating platforms may actually reduce age differences among same-sex couples, despite those couples using online dating at much higher rates. Without their greater reliance on digital platforms, the study suggests, age gaps within same-sex relationships might be even larger. This counterintuitive result points to the homogenizing effects of dating app design on partner selection.

How App Design Shapes Our Choices

The findings also raise questions about how dating-app design influences partner selection. Search filters, profile information and recommendation algorithms can potentially help users narrow their choices around characteristics such as age, education or other preferences. These features may inadvertently steer users toward more similar matches even when they might be open to greater diversity.

Dating app design, including search filters and recommendation algorithms, can potentially narrow user choices around characteristics such as age and education, influencing who ends up matching with whom.

The researchers caution that the study cannot establish a direct causal relationship between online dating and partner selection. Users who choose dating apps may already have different dating preferences from those who meet offline, while the relatively small same-sex sample limits more detailed comparisons. Further research is needed to understand the complex interplay between platform design, user preferences, and relationship outcomes.