The Most Comprehensive Relationship Assessment & TrackerA Better Relationship
In weeks.
Foundering Members get early access free ($249 value). 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.
The SparkTheory app tells you what your partner won’t.
The 4-Week Spark
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. Spark Theory is different: data-driven from day one.”J.P., Co-Founder and Harvard-Trained Mathematician
“Spark Theory 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 & Diplomate Sexologist
“Spark Theory 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