WEB & APP DEVELOPMENT
Web development in Vietnam,built to Korean standards.
From corporate sites to e-commerce and web apps — Yeowubie Interaction runs Vietnam website and web development directly from our Hanoi development core and Ho Chi Minh City base.
We're not an agency that only takes outsourced work. We build and run five products of our own, including Winnie, and we build yours with the same hands.
Planned in Korean from Seoul, shipped from Hanoi. Two registered entities close the communication gap Korean companies struggle with most when entering Vietnam.
WHAT WE BUILD
WEBSITE
Corporate websites
From company profiles to multilingual corporate sites. Vietnam website design built to Korean standards.
E-COMMERCE
E-commerce
Stores wired to local Vietnamese payment and delivery. Commerce that serves Korean and Vietnamese customers at once.
WEB APP
Web apps & platforms
Booking, membership, CRM, admin. Platform muscle from running Winnie and Langtori ourselves.
MOBILE
Mobile apps
Native iOS·Android and cross-platform apps. From launch to operation.
MAINTENANCE
Maintenance & operation
Not a dead end after delivery. Our on-the-ground Vietnam team supports you in Korean.
WHY YEOWUBIE
VERIFIED
Verified entities in both countries
A registered Korean entity plus Hanoi·HCMC bases. KIBO technology guarantee, software-provider certification, AI patent. Not an individual or freelancer.
OPERATORS
A team that operates
We don't only take outsourced work. A team running five of its own products builds yours.
KOREAN DESIGN
Korean design standards
Not local-average quality — Korean-grade design and UX, implemented on the ground in Vietnam.
AI-NATIVE
Fast with AI
AI workflows across day-to-day delivery mean faster builds at a more reasonable cost.
ONE QUEUE
Communication in Korean
Seoul PM plans in Korean, Hanoi ships. Two timezones, one build queue.
HOW WE WORK
01
Free consult & quote
We frame goals, scope, and budget together.
02
Plan & design
Seoul PM designs the IA and Korean-standard design.
03
Build on the ground
Hanoi development core ships; both regions review together.
04
Launch & operate
Maintenance and operation continue after launch.
Pricing guide
Exact cost depends on page count, features, languages, and integrations. The guide below is by type; we share an exact quote in a free consultation.
Corporate website
Profile · multilingual · contact form
Cost is set by page count and language scope.
E-commerce
Products · payment · delivery
Cost is set by payment and logistics integration.
Web app · platform
Membership · booking · CRM · admin
Cost is set by feature complexity and operation scope.
What determines cost
- Page count and structure
- Feature scope (membership·payment·booking·CRM)
- Languages (Korean·Vietnamese·English)
- External system integrations
- Maintenance and operation scope
FAQ
How do I choose a Vietnam web development company?
Check legal entity, on-the-ground developers, communication, and maintenance continuity. Yeowubie Interaction holds a registered Korean entity plus Hanoi·HCMC bases, with a KIBO technology guarantee and an AI patent.
How much does a Hanoi website cost?
Cost varies by page count, features, languages, and integrations. A profile site and a web app or store quote very differently. We share an exact cost after framing scope in a free consultation.
I'm in Vietnam — can we work in Korean?
Yes. The Seoul PM plans and supports in Korean while the Hanoi core ships. Two entities solve the language and timezone gap.
How is this different from a local Vietnamese firm or freelancer?
Yeowubie Interaction is a team that runs five of its own products. Beyond outsourced work, we apply operating experience and Korean design standards to your project, continuing with operation and maintenance rather than ending at delivery.
Can you build multilingual Vietnamese and English sites?
Yes. We build Korean·Vietnamese·English multilingual sites by default. This very site runs in three languages.
Not sure where to start your Vietnam website?
Talk to us in Korean. We'll frame the scope and cost with you.
Request a free consult