The Most Comprehensive Relationship Assessment & TrackerA Better Relationship
In weeks.
Start today free. No strings attached.
Informed by 10,000+ hours of clinical insight.
Built by Harvard & UPenn-trained data scientists and real clinicians.
Your relationship is trying to tell you something.
Track it. Understand it. Change the story.
SparkTheory tells you what your partner can’t (or won’t).
Your Spark Profile
The most science-based relationship tool in the world?
Our clinical psychologists and data scientists think so.
Brought to you by doctors, mathematicians, and neuroscientists who have studied relationships where they actually happen—in real life.
Modern love is messy. Our data isn’t.
Ever wondered how you stack up to other couples—and what they are really doing?
Get weekly insights from the largest relationship study ever run.
Trusted by people who know relationships inside and out
What leading clinicians and behavioral experts are saying: the science behind SparkTheory
“You’d be surprised how many relationship theories aren’t backed by science at all. SparkTheory is different: data-driven from day one.”J.P., Co-Founder and Harvard-Trained Mathematician
“SparkTheory has completely changed the way I work with couples. Instead of vague theories or guesswork, I get clear intel that shows me exactly what’s happening.”Dr. Britt, Co-Founder, Ph.D. Psychologist & Board Certified Diplomate Sexologist
“SparkTheory uses real-time data to break each user’s specific patterns. The more you use it, the better it gets at helping you.”Jessica, Researcher, Boston College
Member stories
For many, results are life changing
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It was a revelation to see how much worse we were than other couples. I knew things were bad—but seeing it laid out removed all doubt.
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Instead of fighting about what didn’t get done, we just pull up the logs we agreed on. It takes the debate out of it and frees up energy for things we (ok, me…) actually care about—like our kitchen reno. 🙂
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I like that I can log something without starting a fight. My partner actually prefers this. The micro-experiments are kind of addictive—you see results that same week.
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I can literally track how many times I have to remind my partner. It sounds small, but it was incredibly validating.
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I shouldn’t admit this, but we’re both competitive. Seeing our scores week to week—and how we compare to other couples—actually motivates us.