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Decoding the science behind soulmates

We partner with top researchers to study attraction, compatibility, and what makes relationships last.
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We provide match data, outcome metrics, and in-product experiments. Our engineers build custom surveys, psychometric tools, and longitudinal tracking. Everything is privacy-first and IRB-friendly.

We support researchers by providing access to de-identified match data, outcome metrics, and randomized in-product experiments. Our team collaborates closely on study design and provides dedicated engineering resources to implement validated psychometric assessments, custom surveys, precise event tracking, and longitudinal follow-ups — all within a privacy-first, IRB-friendly framework. Study pre-registration is encouraged and supported.

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Meet the experts advancing Keeper’s research

Geoffrey Miller
Geoffrey Miller, PhD
Expert in human mate choice, signaling theory, and evolutionary psychology
Bestselling author of The Mating Mind, Spent, and Mate
Shapes Keeper’s scientific framework for attraction and partner matching
Learn about Geoffrey
Geoffrey Miller
Michal Kosinski, PhD
Pioneer in computational psychometrics and digital behavior prediction
Proved that digital footprints can accurately predict personality traits, preferences, and behaviors at scale
Guides Keeper’s psychometric modeling and data-driven insights
Learn about Michal
Geoffrey Miller
Naman Gupta, PhD Student
PhD researcher, Stanford Management Science & Engineering
Specializes in dating market analysis, optimization, and algorithm design for two-sided matching
Leads internal studies on relationship formation predictors and optimizes Keeper’s matching algorithms
Learn about Naman
One of the richest datasets in the world
1.5M users and growing
Combining structured data with deep, long-form responses
Age
Height
Politics
Religion
Gender
Big  5  traits
additional  personality measures
IQ
lifestyle  habits
Exercise  routines
Dietary  preferences
Pet  ownership
Attachment  Styles
and  much  more
Deeply committed to privacy
All data used in research is 100% anonymized.
User privacy is our highest priority. We take rigorous measures at every stage to protect user identities and personal information, enabling scientific breakthroughs without compromising trust.