Trust Signals, Behavior-Driven Trust

Trust Signals, Behavior-Driven Trust

Built Personality-Level Trust in Dating Experiences

Built Personality-Level Trust in Dating Experiences

Built Personality-Level Trust in Dating Experiences

Balancing user trust with business growth

Balancing user trust with business growth

Balancing user trust with business growth

Problem

Problem

Problem

In dating app, shallow profiles and a sense of distrust make it hard to build trust.

In dating app, shallow profiles and a sense of distrust make it hard to build trust.

In dating app, shallow profiles and a sense of distrust make it hard to build trust.

Users often experience harassment, fake profiles, and other crimes on dating apps,

making it difficult to trust who someone really is.

Users often experience harassment, fake profiles, and other crimes on dating apps, making it difficult to trust who someone really is.

Users often experience harassment, fake profiles, and other crimes on dating apps, making it difficult to trust who someone really is.

Solution

Solution

Solution

Building Credibility Through Structured Recommendations.

Building Credibility Through Structured Recommendations.

Building Credibility Through Structured Recommendations.

  • Introduced a structured micro-recommendation format (tag selection + one-line comment), reducing effort while still capturing concrete trust signals.

  • Designed the UX so that multiple short recommendations aggregate into cumulative credibility.

  • Combined recommendations with relational data (friendship length, alumni status, mutual contacts), making even short comments carry objective weight.

  • Introduced a structured micro-recommendation format (tag selection + one-line comment), reducing effort while still capturing concrete trust signals.

  • Designed the UX so that multiple short recommendations aggregate into cumulative credibility.

  • Combined recommendations with relational data (friendship length, alumni status, mutual contacts), making even short comments carry objective weight.

  • Introduced a structured micro-recommendation format (tag selection + one-line comment), reducing effort while still capturing concrete trust signals.

  • Designed the UX so that multiple short recommendations aggregate into cumulative credibility.

  • Combined recommendations with relational data (friendship length, alumni status, mutual contacts), making even short comments carry objective weight.

Project Impact

Project Impact

Project Impact

Achieved 40% increase in users, reaching a balanced 1:1 gender ratio.

Achieved 40% increase in users, reaching a balanced 1:1 gender ratio.

Achieved 40% increase in users, reaching a balanced 1:1 gender ratio.

Lowered entry barriers while maintaining trust effectiveness.

Lowered entry barriers while maintaining trust effectiveness.

Lowered entry barriers while maintaining trust effectiveness.

Phase 1

Boost matches by building trust in character.

Boost matches by building trust in character.

Boost matches by building trust in character.

Background

Background

Background

Existing online dating apps are arenas of distrust.

Existing online dating apps are arenas of distrust.

Existing online dating apps are arenas of distrust.

Source : Online Dating Service Usage Survey, Dec. 2020 Korea Consumer Agency

Source : Online Dating Service Usage Survey, Dec. 2020 Korea Consumer Agency

User Interview

User Interview

User Interview

Surface-level profile info made it hard to trust their character.

Surface-level profile info made it hard to trust their character.

Surface-level profile info made it hard to trust their character.

Goal

Identify specific reasons of distrust when relying only on profile information


Method

8 user interviews (semi-structured)


Findings

Instinctive caution toward strangers

Lack of evidence to verify the other person’s authenticity

Goal

Identify specific reasons of distrust when relying only on profile information


Method

8 user interviews (semi-structured)


Findings

Instinctive caution toward strangers

Lack of evidence to verify the other person’s authenticity

*Permission to use interviewee photos in this portfolio has been obtained.

*Permission to use interviewee photos in this portfolio has been obtained.

“I know they exist, but I’m not sure about their character, so I still can’t trust them.”

“I know they exist, but I’m not sure about their character, so I still can’t trust them.”

“I know they exist, but I’m not sure about their character, so I still can’t trust them.”

“All this info, but I still don’t know who they really are.

“All this info, but I still don’t know who they really are.

“All this info, but I still don’t know who they really are.

Literature Research

Literature Research

Literature Research

To trust someone’s character, the endorsement of others is essential.

To trust someone’s character, the endorsement of others is essential.

To trust someone’s character, the endorsement of others is essential.

How might we + Success Metrics

How might we + Success Metrics

How might we + Success Metrics

Ideation 1 + User’s Feedback

Ideation 1 + User’s Feedback

Ideation 1 + User’s Feedback

Recommendations from their acquaintance was most trustworthy & fit the need for diverse intros.

Recommendations from their acquaintance was most trustworthy & fit the need for diverse intros.

Recommendations from their acquaintance was most trustworthy & fit the need for diverse intros.

Ideation 2 + Comparison

Ideation 2 + Comparison

Ideation 2 + Comparison

Recommendations that shared personal stories earned the most trust.

Recommendations that shared personal stories earned the most trust.

Recommendations that shared personal stories earned the most trust.

Design

Design

Design

Listen to what their friend says

Listen to what their friend says

Listen to what their friend says

Recommender:

Recommender:

Recommender:

John. T

John. T

John. T

Male

Male

Male

Charm seen by a friend

Charm seen by a friend

Charm seen by a friend

Charming personality 😘

Charming personality 😘

Charming personality 😘

Fashion sense 🧥

Fashion sense 🧥

Fashion sense 🧥

Harmonious family 👨‍👩‍👦

Harmonious family 👨‍👩‍👦

Harmonious family 👨‍👩‍👦

How did you meet?

How did you meet?

How did you meet?

College Friend

College Friend

College Friend

How long have you known each other?

How long have you known each other?

How long have you known each other?

3-5 years

3-5 years

3-5 years

What strengths have you seen?

What strengths have you seen?

What strengths have you seen?

Jieun is my former coworker! She’s incredibly responsible with her work and always puts others first. Even though dealing with people can be tough, she never shows it and just keeps smiling, and I honestly admire her for that. Jieun has such a bright energy that whenever I’m with her, I feel happier too. And as for her beauty, that goes without saying 😌

Jieun is my former coworker! She’s incredibly responsible with her work and always puts others first. Even though dealing with people can be tough, she never shows it and just keeps smiling, and I honestly admire her for that. Jieun has such a bright energy that whenever I’m with her, I feel happier too. And as for her beauty, that goes without saying 😌

Jieun is my former coworker! She’s incredibly responsible with her work and always puts others first. Even though dealing with people can be tough, she never shows it and just keeps smiling, and I honestly admire her for that. Jieun has such a bright energy that whenever I’m with her, I feel happier too. And as for her beauty, that goes without saying 😌

Affiliation:

Affiliation:

Affiliation:

Naver / Planning

Naver / Planning

Naver / Planning

Naver

Naver

Naver

Marketer

Marketer

Marketer

Los Angeles

Los Angeles

Los Angeles

Verified

Verified

Verified

“One thing’s for sure, you’ll never be bored with this friend 🤓”

“One thing’s for sure, you’ll never be bored with this friend 🤓”

“One thing’s for sure, you’ll never be bored with this friend 🤓”

User Testing Results

User Testing Results

User Testing Results

User testing were also positive, so we launched it.

User testing were also positive, so we launched it.

User testing were also positive, so we launched it.

Goal

Verify if recommendation notes increase user trust and satisfaction (Happiness)

Measure whether this experience improves revisit rate (Retention)

A/B Test

A (Baseline): Self-introduction only

B (Improved): Self-introduction + friend recommendation note

Metrics

Happiness: User trust satisfaction test (5-point survey on recommendation trust + interviews)

Retention: Profile trust by recommendations (Number of likes received on the same profile)

Goal

Verify if recommendation notes increase user trust and satisfaction (Happiness)

Measure whether this experience improves revisit rate (Retention)

A/B Test

A (Baseline): Self-introduction only

B (Improved): Self-introduction + friend recommendation note

Metrics

Happiness: User trust satisfaction test (5-point survey on recommendation trust + interviews)

Retention: Profile trust by recommendations (Number of likes received on the same profile)

“Because I was recommended by someone, I felt reassured that at least this person wouldn’t be weird.”

“Because I was recommended by someone, I felt reassured that at least this person wouldn’t be weird.”

“Since the introduction was written by others, it felt more objective and trustworthy.”

“Since the introduction was written by others, it felt more objective and trustworthy.”

Impact

Impact

Impact

More than 70% of users in the app have recommendations.

More than 70% of users in the app have recommendations.

More than 70% of users in the app have recommendations.

Happiness

Happiness

Trust satisfaction increased by 60%

Trust satisfaction increased by 60%

Recommendation X

Recommendation X

Recommendation 0

Recommendation 0

60%

60%

4.6

4.6

0.8

0.8

User trust satisfaction test

User trust satisfaction test

Participants: 324 / Scale: 5-point

Participants: 324 / Scale: 5-point

Retention

Retention

Number of matches increased fivefold

Number of matches increased fivefold

Profile trust by recommendations

Profile trust by recommendations

Recommendation X

Recommendation X

Number of likes received 4

Number of likes received 4

vs

vs

Recommendation 0

Recommendation 0

Number of likes received 22

Number of likes received 22

*Total: 197 participants

*Total: 197 participants

“Having recommendations made me feel I could trust the person.”

“Having recommendations made me feel

I could trust the person.”

“Having recommendations made me feel

I could trust the person.”

Phase 2

Phase 2

Phase 2

But after launch, new sign-ups started to decline.

But after launch, new sign-ups started to decline.

But after launch, new sign-ups started to decline.

Unexpectedly

Unexpectedly

Unexpectedly

New sign-ups dropped 3.2 times after adding testimonials.

New sign-ups dropped 3.2 times after adding testimonials.

New sign-ups dropped 3.2 times after adding testimonials.

Problem Analysis

Problem Analysis

Problem Analysis

Having to write long testimonials became a barrier, so people didn’t join.

Having to write long testimonials became a barrier, so people didn’t join.

Having to write long testimonials became a barrier, so people didn’t join.

S

S

S

Felt like immigration check.

Took too long and I gave up on signing up.

Felt like immigration check.

Took too long and I gave up on signing up.

Felt like immigration check.

Took too long and I gave up on signing up.

Trade-off

Trade-off

Trade-off

Shorter testimonials bring more sign-ups but less trust.

Shorter testimonials bring more sign-ups but less trust.

Shorter testimonials bring more sign-ups but less trust.

Testimonial length

Testimonial length

Testimonial length

Testimonial length

Testimonial length

Testimonial length

Trust

Trust

Trust

Trust

Trust

Trust

New sign-ups

New sign-ups

New sign-ups

New sign-ups

New sign-ups

New sign-ups

How Might We?

How Might We?

How Might We?

... reduce length of a referral while maintaining trust to

increase new users and satisfy current users?

... reduce length of a referral while maintaining trust to

increase new users and satisfy current users?

... reduce length of a referral while maintaining trust to

increase new users and satisfy current users?

Adoption : Number of new sign-ups

Adoption : Number of new sign-ups

I decided to maintain trust not through “length,”

but through the “highlighting various aspects of users”.

Length

highlighting various aspects of users

Ideation

Selecting tags and writing one line reference.

Users leave trust cues with a short tag

+ one-line comment.

+

Writing Load ↓

+

Participation ↑

Stacked short comments from multiple people build cumulative trust.

Sarah T.

Female

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

Facebook Product Manager / Known for 3 years

John H.

Prefer not to say

Fun, easygoing, and full of energy.

Definitely worth meeting

Self-employed / Known for 3 years

Always brings good vibes.

You’ll have a great time with them.

Lawyer / Known for 3 years

James R.

Male

Implemented a structure that displayed a list of short one-line recommendations left by friends.

+

Trust ↑

+

Variety ↑

I decided to maintain trust not through “length,”

but through the “highlighting various aspects of users”.

Length

highlighting various aspects of users

Ideation

Selecting tags and writing one line reference.

Users leave trust cues with a short tag

+ one-line comment.

+

Writing Load ↓

+

Participation ↑

Stacked short comments from multiple people build cumulative trust.

Sarah T.

Female

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

Facebook Product Manager / Known for 3 years

John H.

Prefer not to say

Fun, easygoing, and full of energy.

Definitely worth meeting

Self-employed / Known for 3 years

Always brings good vibes.

You’ll have a great time with them.

Lawyer / Known for 3 years

James R.

Male

Implemented a structure that displayed a list of short one-line recommendations left by friends.

+

Trust ↑

+

Variety ↑

I decided to maintain trust not through “length,” but through the “highlighting various aspects of users”

Length

highlighting various aspects of users

Ideation

Selecting tags and writing one line reference.

Users leave trust cues with a short tag

+ one-line comment.

+

Writing Load ↓

+

Participation ↑

Stacked short comments from multiple people build cumulative trust.

Sarah T.

Female

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

Facebook Product Manager / Known for 3 years

John H.

Prefer not to say

Fun, easygoing, and full of energy.

Definitely worth meeting

Self-employed / Known for 3 years

Always brings good vibes.

You’ll have a great time with them.

Lawyer / Known for 3 years

James R.

Male

Implemented a structure that displayed a list of short one-line recommendations left by friends.

+

Trust ↑

+

Variety ↑

Iteration

Iteration

Iteration

1.Structured Micro-Recommendation

1.Structured Micro-Recommendation

1.Structured Micro-Recommendation

+

+

+

Iteration #1

Iteration #1

Iteration #1

The horizontal scrolling feels unnatural

The horizontal scrolling feels unnatural

The horizontal scrolling feels unnatural

Final Design

Final Design

Final Design

Reducing depth is beneficial from a business perspective.

Reducing depth is beneficial from a business perspective.

Reducing depth is beneficial from a business perspective.

Look up my friend’s name.

Look up my friend’s name.

Look up my friend’s name.

9:41

9:41

9:41

Yuna Kim

Yuna Kim

Yuna Kim

Cez Krol

Cez Krol

Cez Krol

Yerim Kim

Yerim Kim

Yerim Kim

John Feng

John Feng

John Feng

Lydia Yang

Lydia Yang

Lydia Yang

연락처 업데이트

연락처 업데이트

연락처 업데이트

Invite your friends!

Invite your friends!

Invite your friends!

What do you like about her?

What do you like about her?

What do you like about her?

👊 Positive

👊 Positive

👊 Positive

🍵 Calm

🍵 Calm

🍵 Calm

🐹 Cute

🐹 Cute

🐹 Cute

😜 Humorous

😜 Humorous

😜 Humorous

🤓 Compete

🤓 Compete

🤓 Compete

💰 Capable

💰 Capable

💰 Capable

👏🏻 Inspiring

👏🏻 Inspiring

👏🏻 Inspiring

💪🏻 Fit

💪🏻 Fit

💪🏻 Fit

🍭 Kind

🍭 Kind

🍭 Kind

⚖ Good character

⚖ Good character

⚖ Good character

🏊🏻 Self-disciplined

🏊🏻 Self-disciplined

🏊🏻 Self-disciplined

✨ Attractive

✨ Attractive

✨ Attractive

😘 Playful

😘 Playful

😘 Playful

🙇🏻‍♀️ Polite

🙇🏻‍♀️ Polite

🙇🏻‍♀️ Polite

+ Manual entry

+ Manual entry

+ Manual entry

Invite

Invite

Invite

+

+

+

Iteration #2

Iteration #2

Iteration #2

A full page feels overwhelming for users

A full page feels overwhelming for users

A full page feels overwhelming for users

My Amazing Friend

My Amazing Friend

My Amazing Friend

😘

What do you like about her?

😘

What do you like about her?

😘

What do you like about her?

3 / 3개

3 / 3개

3 / 3개

👊 Positive

👊 Positive

👊 Positive

🍵 Calm

🍵 Calm

🍵 Calm

🐹 Cute

🐹 Cute

🐹 Cute

😜 Humorous

😜 Humorous

😜 Humorous

🤓 Compete

🤓 Compete

🤓 Compete

💰 Capable

💰 Capable

💰 Capable

👏🏻 Inspiring

👏🏻 Inspiring

👏🏻 Inspiring

💪🏻 Fit

💪🏻 Fit

💪🏻 Fit

🍭 Kind

🍭 Kind

🍭 Kind

⚖ Good character

⚖ Good character

⚖ Good character

🏊🏻 Self-disciplined

🏊🏻 Self-disciplined

🏊🏻 Self-disciplined

✨ Attractive

✨ Attractive

✨ Attractive

😘 Playful

😘 Playful

😘 Playful

🙇🏻‍♀️ Polite

🙇🏻‍♀️ Polite

🙇🏻‍♀️ Polite

+ Manual entry

+ Manual entry

+ Manual entry

Invite

Invite

Invite

2.Cumulative Trust

2.Cumulative Trust

2.Cumulative Trust

+

+

+

Iteration #1

Iteration #1

Iteration #1

Hard to read

Hard to read

Hard to read

Jane

Jane

Jane

Female

Female

Female

Meta

Meta

Meta

1 / 3

1 / 3

1 / 3

9:41

9:41

9:41

John H.

John H.

John H.

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

Marketer, Google

Marketer, Google

Marketer, Google

Sarah T.

Sarah T.

Sarah T.

Always brings good vibes. You’ll have a great time with them.



Always brings good vibes. You’ll have a great time with them.



Always brings good vibes. You’ll have a great time with them.



Lawyer

Lawyer

Lawyer

James R.

James R.

James R.

Fun, easygoing, and full of energy. Definitely worth meeting

Fun, easygoing, and full of energy. Definitely worth meeting

Fun, easygoing, and full of energy. Definitely worth meeting

IT Developer, Startup

IT Developer, Startup

IT Developer, Startup

Blair W.

Blair W.

Blair W.

Always brings good vibes. You’ll have a great time with them.


Always brings good vibes. You’ll have a great time with them.


Always brings good vibes. You’ll have a great time with them.


Designer, Meta

Designer, Meta

Designer, Meta

추천인 : 강*희

추천인 : 강*희

추천인 : 강*희

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

변호사

변호사

변호사

추천인 : 김*혜

추천인 : 김*혜

추천인 : 김*혜

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

자영업자

자영업자

자영업자

추천인 : 강*희

추천인 : 강*희

추천인 : 강*희

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

변호사

변호사

변호사

추천인 : 김*혜

추천인 : 김*혜

추천인 : 김*혜

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

자영업자

자영업자

자영업자

Final Design

Final Design

Users : “It feels like the recommender is telling me directly, I like that.”

Users : “It feels like the recommender is telling me directly, I like that.”

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

Marketer, Google

Marketer, Google

John H.

John H.

Male

Male

Always brings good vibes. You’ll have a great time with them.

Always brings good vibes. You’ll have a great time with them.

Sarah T.

Sarah T.

Female

Female

Fun, easygoing, and full of energy. Definitely worth meeting

Fun, easygoing, and full of energy. Definitely worth meeting

James R.

James R.

Prefer not to say

Prefer not to say

Always brings good vibes. You’ll have a great time with them.

Always brings good vibes. You’ll have a great time with them.

Blair W.

Blair W.

Female

Female

Lawyer

Lawyer

IT Developer, Startup

IT Developer, Startup

Jane

Jane

Female

Female

Meta

Meta

1 / 3

1 / 3

9:41

9:41

+

+

+

Iteration #2

Iteration #2

Iteration #2

Distracting colors

Distracting colors

Distracting colors

John H.

John H.

John H.

Male

Male

Male

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

Marketer, Google

Marketer, Google

Marketer, Google

Sarah T.

Sarah T.

Sarah T.

Female

Female

Female

Always brings good vibes. You’ll have a great time with them.

Always brings good vibes. You’ll have a great time with them.

Always brings good vibes. You’ll have a great time with them.

Lawyer

Lawyer

Lawyer

James R.

James R.

James R.

Prefer not to say

Prefer not to say

Prefer not to say

Fun, easygoing, and full of energy. Definitely worth meeting

Fun, easygoing, and full of energy. Definitely worth meeting

Fun, easygoing, and full of energy. Definitely worth meeting

IT Developer, Startup

IT Developer, Startup

IT Developer, Startup

Jane

Jane

Jane

Female

Female

Female

Meta

Meta

Meta

1 / 3

1 / 3

1 / 3

9:41

9:41

9:41

추천인 : 강*희

추천인 : 강*희

추천인 : 강*희

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

한번 사귀면 진짜 잘해주더라. 만나보길 추천드려요. 미래의 형수님~!!

변호사

변호사

변호사

추천인 : 김*혜

추천인 : 김*혜

추천인 : 김*혜

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

나 진짜 얘한테 감동먹은 적이 너무 많아서 셀수 없어. 완전 따스한 애야.

자영업자

자영업자

자영업자

Final Design

Users : “It feels like the recommender is telling me directly, I like that.”

If there’s one guarantee, it’s that you won’t be bored hanging out with this friend 🤓

Marketer, Google

John H.

Male

Always brings good vibes. You’ll have a great time with them.

Sarah T.

Female

Fun, easygoing, and full of energy. Definitely worth meeting

James R.

Prefer not to say

Always brings good vibes. You’ll have a great time with them.

Blair W.

Female

Lawyer

IT Developer, Startup

Jane

Female

Meta

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User Testing

User Testing

User Testing

Can a short format still be persuasive in building trust?

Can a short format still be persuasive in building trust?

60%

60%

60%

40%

40%

40%

0%

0%

0%

0%

0%

0%

Strongly agree

Strongly agree

Strongly agree

Agree

Agree

Agree

Neutral

Neutral

Neutral

Disagree / Strongly disagree

Disagree / Strongly disagree

Disagree / Strongly disagree

Long texts can sometimes feel hard to read, but when multiple short ones stack up, it actually brings together diverse perspectives and feels easier to digest.


Long texts can sometimes feel hard to read, but when multiple short ones stack up, it actually brings together diverse perspectives and feels easier to digest.


Long texts can sometimes feel hard to read, but when multiple short ones stack up, it actually brings together diverse perspectives and feels easier to digest.

— Male, 32

— Male, 32

— Male, 32

Is it not burdensome if multiple acquaintances are asked to write recommendations?

Is it not burdensome if multiple acquaintances are asked to write recommendations?

20%

20%

20%

80%

80%

80%

0%

0%

0%

0%

0%

0%

Strongly agree

Strongly agree

Strongly agree

Agree

Agree

Agree

Neutral

Neutral

Neutral

Disagree / Strongly disagree

Disagree / Strongly disagree

Disagree / Strongly disagree

“When several people each leave a little note, it feels much more natural and convincing than one person’s exaggerated praise.”

“When several people each leave a little note, it feels much more natural and convincing than one person’s exaggerated praise.”

“When several people each leave a little note, it feels much more natural and convincing than one person’s exaggerated praise.”

— Male, 28

— Male, 28

— Male, 28

Impact & Result

Impact & Result

Impact & Result

Adoption : Number of new sign-ups

Adoption : Number of new sign-ups

Adoption : Number of new sign-ups

28% growth in new user sign-ups

28% growth in new user sign-ups

28% growth in new user sign-ups

Design System

Design System

Design System

The design system was built from start to finish.

The design system was built from start to finish.

The design system was built from start to finish.

-Built a reusable trust component system

-Standardized tags, comments, and affiliation cues

-Ensured consistency & easy scaling across features

-Built a reusable trust component system

-Standardized tags, comments, and affiliation cues

-Ensured consistency & easy scaling across features

-Built a reusable trust component system

-Standardized tags, comments, and affiliation cues

-Ensured consistency & easy scaling across features

Accessibility

Accessibility

Accessibility

Integrated a11y checks to ensure accessible color contrast and readability.

Integrated a11y checks to ensure accessible color contrast and readability.

Integrated a11y checks to ensure accessible color contrast and readability.

What I’ve Learned

What I’ve Learned

What I’ve Learned

Balancing user trust with business growth.

Balancing user trust with business growth.

Balancing user trust with business growth.

In the process of balancing trust and new user growth, I was able to look deeper into the fundamental reasons why people hesitate and feel distrust. I experienced firsthand that trust grows stronger when relationships, context, and collective evidence come together. This taught me that meaningful design is not just about service performance, but about understanding people’s hearts as well.

In the process of balancing trust and new user growth, I was able to look deeper into the fundamental reasons why people hesitate and feel distrust. I experienced firsthand that trust grows stronger when relationships, context, and collective evidence come together. This taught me that meaningful design is not just about service performance, but about understanding people’s hearts as well.

In the process of balancing trust and new user growth, I was able to look deeper into the fundamental reasons why people hesitate and feel distrust. I experienced firsthand that trust grows stronger when relationships, context, and collective evidence come together. This taught me that meaningful design is not just about service performance, but about understanding people’s hearts as well.

© Yunjin Tak 2025 All Rights Reserved

© Yunjin Tak 2025 All Rights Reserved