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UX Consulting, UI Design, Software Development

HEYHICOMPANY is a strategic partner that delivers UX/UI consulting and web & app development built on human-centered design for the AI era.

STRATEGY, RESEARCH, EXPERIENCE, PROTOTYPING
BRANDING, UX DESIGN, GUI DESIGN, 3D DESIGN, MOTION DESIGN
WEB DEVELOPMENT, APP DEVELOPMENT
ADVERTISING VIDEO, PRODUCT VIDEO

  • Min project size
    $5,000+
  • Hourly rate
    Undisclosed
  • Employees
    10 - 49
  • Locations
    Seoul, South Korea
  • Year founded
    Founded 2019

1 Locations

  • Seoul , South Korea

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Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate Undisclosed
Rating for cost 5 /5

Most Common Project Size

$10,000 - $49,999 based on 5 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Highly Rated Similar Providers

Overall Review Rating

5.0
  • Quality

    5.0 /5
  • Schedule

    5.0 /5
  • Cost

    5.0 /5
  • Willing to Refer

    5.0 /5
See all 5 Reviews

HEYHICOMPANY Reviews

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Web Design Services for Tech Event Organizer

  • UX/UI Design Web Design
  • $50,000 to $199,999
  • Jan. 2025 - May 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“This combination of creativity, structure, and efficiency truly set them apart.”

Jun 18, 2026
Deputy CEO, Lviv IT Cluster
Yurii Ohonovskyi
  • Information technology
  • Ukraine
  • 51-200 Employees
  • Online Review

HEYHICOMPANY provided web design services for a tech event organizer. The team redesigned the client's landing page and created other web pages, contact forms, pop-ups, and more.

Android & iOS App Development & Design for Sensor Data Co

  • Mobile App Development UX/UI Design
  • Android App Development
    +1
  • $10,000 to $49,999
  • Jan. - June 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The key individuals have a lot of experience in building mobile apps and are attentive to detail in usability and UX."

Jun 15, 2026
Managing Partner, SensorInsight
Steven Gerhardt
  • Other industries
  • Houston, Texas
  • 1-10 Employees
  • Online Review

HEYHICOMPANY designed and developed a mobile app for a sensor data company. The team was responsible for building an Android and iOS app using Figma for design and React Native for development.

Website Redesign Services for Business Services Company

  • UX/UI Design Web Development
  • $10,000 to $49,999
  • Jan. - June 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“The entire engagement was organized, predictable, and professionally managed.”

Jun 11, 2026
CEO, OfferingTree
Eddie Arpin
  • Business services
  • Saint Paul, Minnesota
  • 11-50 Employees
  • Online Review

HEYHICOMPANY redesigned a business services company's website. The team revamped the UX/UI, handled front- and backend development, optimized responsiveness, and enhanced conversion capabilities.

Web App Development for FinTech Company

  • Custom Software Development Mobile App Development Web Development
  • $10,000 to $49,999
  • June 2025 - Mar. 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They made our platform feel intuitive without dumbing it down."

Jun 9, 2026
Chief Product Officer, Quantmatix Limited
John Mulligan
  • Financial services
  • Dublin, Ireland
  • 11-50 Employees
  • Online Review

HEYHICOMPANY designed and developed a web app for a financial technology company. The team created the app's UI/UX design, trading signal dashboards, a multi-asset screener, and more.

Website Revamp for CRM Consulting Firm

  • UX/UI Design Web Design Web Development
  • $10,000 to $49,999
  • Sep. 2025 - Apr. 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"HEYHICOMPANY made something that looked genuinely polished but was also built to sell."

Jun 8, 2026
Co-Owner, DOitWELL
Elena Toptunenko
  • Business services
  • Kyiv, Ukraine
  • 11-50 Employees
  • Online Review

HEYHICOMPANY redesigned and redeveloped a CRM consulting firm's website from scratch. The team created the visual design, built the backend, set up the site in three languages, and integrated contact forms.

Showing 1-5 of 5 Reviews

Our Story

HeyHi Company is a creative design and development agency based in Seoul and Bangkok, building digital products that move Asia forward.
For seven years, we've partnered with ambitious brands on UI/UX design, web and mobile development, and UX consulting—from complex B2B SaaS platforms to enterprise dashboards. With dual hubs in South Korea and Thailand, we combine Korean design precision with Southeast Asian reach to help businesses scale across borders.

Locations (1)

Signature Tower, 100 Cheonggyecheon-ro, Jung-gu, Seoul SeoulSouth Korea 04542

10 - 15

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