Research-backed
The Science of SoulSync
Every match is grounded in decades of personality research. Here’s how our algorithm turns psychology into meaningful connections.
Free · 15 minutes · Science-backed
50+
years of research
11
dimensions measured
7
personality profiles
~15 min
to complete
The Big Five Personality Model
Our assessment is built on the Big Five (OCEAN) framework: the most widely validated model in personality psychology, replicated across cultures for over 50 years. Unlike typology systems, it captures the full spectrum of each trait rather than forcing binary categories.
Openness
Imagination, curiosity, aesthetic sensitivity, and intellectual engagement with new ideas and experiences.
Conscientiousness
Organisation, dependability, goal-directedness, and self-discipline. Predicts reliability in relationships.
Extraversion
Sociability, assertiveness, and the drive to seek stimulation through other people. Shapes energy exchange in a couple.
Agreeableness
Cooperation, empathy, trust, and concern for social harmony. One of the strongest predictors of relationship satisfaction.
Emotional Stability
The degree to which you remain calm, balanced, and resilient under stress versus reactive and anxious. Affects conflict resolution.
Sample OCEAN profile
The OCEAN acronym
Continuous spectrums, not fixed boxes. No two profiles are identical.
Six Extended Dimensions
OCEAN alone predicts attraction, but lasting relationships depend on deeper alignment. SoulSync adds six relationship-specific dimensions that research consistently links to long-term satisfaction.
Relationship Style
How you approach commitment, independence, and pacing in romantic relationships.
Intimacy
Your comfort with emotional and physical closeness, measured adaptively based on your earlier answers.
Communication Style
Whether you express needs directly or indirectly, and how you prefer to navigate conflict.
Attachment Style
Patterns of security, anxiety, and avoidance in close bonds, rooted in decades of attachment theory research.
Life Values
Alignment on family, career, faith, and financial outlook, the factors couples argue about most.
Ambition
Unlocked when high drive signals appear. Pairs motivated people with equally ambitious partners.
Sample question from the assessment
“When you disagree with someone close to you, how do you typically respond?”
Select an answer to see how it shapes your profile.
See your full profileSeven Compatibility Profiles
Your dimension scores combine into one of seven personality profiles. Each archetype has a compatibility map derived from research into which configurations build the most fulfilling long-term bonds.
The Innovator
Creative, curious, and independently minded.
Most compatible with
The Supporter
Warm, caring, and deeply empathic.
Most compatible with
The Organizer
Reliable, structured, and dependable.
Most compatible with
The Harmonizer
Diplomatic, empathic, and conflict-averse.
Most compatible with
The Analyst
Logical, reflective, and intellectually driven.
Most compatible with
The Connector
Socially fluent, adaptable, and expressive.
Most compatible with
The Free Spirit
Spontaneous, open-minded, and experience-seeking.
Most compatible with
How Your Score Is Calculated
Compatibility begins with type affinity: whether your personality profile is research-identified as complementary to your potential match. This is then refined by dimension-level similarity across all 11 traits. Scores above 75% indicate alignment across multiple independent factors.
95%
Strong: type affinity confirmed, high dimension overlap
80%
Good: partial type affinity or strong dimension similarity
60%
Possible: different types but meaningful shared traits
All 11 dimensions feed the score
Ready to discover your personality profile?
Free · 15 minutes · No credit card required.
An Assessment That Adapts to You
Most personality tests use a fixed question set. SoulSync’s assessment unlocks deeper questions only when your earlier answers signal openness. Sensitive dimensions like intimacy preferences, attachment patterns, and ambition are never surfaced without clear consent: ensuring accuracy without discomfort.
Core personality (always asked)
30 questions · ~10 min
Relationship & intimacy preferences
Unlocked when openness signals detected
Values & communication depth
Unlocked when tier 2 confirms deeper openness
Advanced dimensions
Only surfaced when clearly relevant
Why Personality Matching Works
Photo-based apps optimise for initial attraction, which is a poor predictor of relationship longevity. Studies from Finkel et al. (2012) and Eastwick et al. (2019) show that personality similarity: especially on values, communication, and attachment: is among the strongest predictors of long-term relationship quality. SoulSync translates this directly into your feed.
Personality predicts relationship quality
Meta-analyses across thousands of couples show that personality similarity: especially agreeableness and emotional stability: is consistently linked to higher satisfaction, longer relationships, and fewer conflicts.
Photos predict attraction, not longevity
Research by Eastwick et al. (2019) found that the traits people say they want barely predict who they’re satisfied with long-term. Compatibility is built from personality, not appearance.
Communication alignment reduces conflict
Couples with similar communication styles: how they express needs, handle disagreements, and give feedback: report significantly higher relationship quality.
Secure attachment is the foundation
Bowlby and Ainsworth’s attachment theory, validated in adult relationships by Hazan & Shaver (1987), shows that matching secure-leaning attachment styles dramatically improves partnership stability.
Take the Assessment
Free · 15 minutes · Science-backed