Dating Apps That Match by Personality Type: Boo, So Syncd, and What the Research Says
A few dating apps put your four-letter personality type front and center. It is a fun, conversation-friendly idea. It works best as a way to understand someone, not as a filter for who you are allowed to like.
Boo
Boo is a dating and friendship app built around personality psychology. You take a short MBTI-style quiz in the app (or enter a type you already know), and Boo also shows Enneagram and zodiac. You can filter matches by personality type as well as the usual age, distance and relationship-type settings, and Boo explains which types it thinks you are most compatible with. Beyond dating, it has interest communities and friendship matching. Core use is free, with paid features on top.
So Syncd
So Syncd was founded in London by sisters Jessica and Louella Alderson, launched in 2020 and expanded to the US in 2021. Its pitch is matching complementary Myers-Briggs types: enough in common to understand each other, enough difference to create a spark. Sign-up starts with a roughly 40-question personality test (5–10 minutes), and the app shows a compatibility percentage based on your types and profiles. Signing up and taking the test are free.
Does matching by type work?
Here the honest answer matters. Many psychologists consider four-letter type tests weaker than trait measures such as the Big Five, and people often get a letter or two different when they retake a type test. There is no strong evidence that particular type pairs make better couples. Reviewers of these apps make the same point: sharing a type doesn't guarantee someone is looking for the same thing you are.
What type is genuinely good for is understanding. Knowing that your partner is a strong introvert, or makes decisions by logic first, helps you read their behavior kindly instead of personally. That benefit shows up whatever type they are.
A better way to use your type
- Don't filter by type. Meet people on whatever app works for you.
- Compare once you are interested. Each take a free test and look at where you are alike and where you differ.
- Talk about the differences. That conversation is where the value is.
MakeChoice does steps 2 and 3 for free: a 10-minute test, your 4-letter type, and a side-by-side comparison with anyone you invite. It is not a dating app; it is a free tool from a nonprofit.
Curious how your type pairs with someone else's? See the compatibility of all 16 types, with a page for every pairing.
At a glance
| Boo | So Syncd | MakeChoice | |
|---|---|---|---|
| What it is | Dating + friendship app | Dating app | Personality test + comparison (not a dating app) |
| Frameworks | MBTI-style, Enneagram, zodiac | Myers-Briggs-style 16 types | MBTI-style 4-letter type |
| Filter matches by type | Yes | Compatibility % by type | No matching; compare with people you know |
| Price | Free core, paid extras | Free to join and test | Free |
Try the free test
About 10 minutes. Your 4-letter type, careers that fit, and a compatibility view you can share with a partner, family member, friend or teammate. Free from a nonprofit, no credit card.
Start the free testQuestions people ask
- Is there a dating app based on Myers-Briggs?
- Yes. Boo and So Syncd both use MBTI-style personality types in matching. Boo also includes Enneagram and zodiac and supports friendships.
- Are some personality types more compatible?
- There is no strong evidence that particular type pairs make better couples. Type is most useful for understanding how a partner thinks and recharges, whatever their type.
- How can I compare my MBTI type with my partner for free?
- Take the MakeChoice test, invite your partner, and you will both see where your types align and differ.