From first line to last,
your development partner

Not the build-it-and-leave kind of agency.
We stay through planning, development, deployment, and operations — a technology partner that sticks around as your business grows.

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WHY EVERGREEN

Many companies want to build great products,
but don't know where to begin.

Too many teams are left with polished decks and half-built prototypes,
never reaching an actual launch.

Slowing development, mounting technical debt.
There's no longer room for the unfinished or the delayed.

Building it right — that's the answer.

Good software isn't a cost. It's an asset that drives business growth.

And Evergreen proves that answer with shipped results.

From planning to launch — and through the growth that follows.

We don't simply take on outsourcing.
We become the technology partner for your next decade of growth.

Our Services

CORE

Featured Works

우리차이나
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우리차이나

Chinese Learning + 1-on-1 Video Lessons + AI Pronunciation & Conversation Platform

FlutterNest.jsMySQLAWSAgora SDKOpenAI API
POZO
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POZO

F&B O2O Ordering, Operations & Settlement Platform

FlutterFlutter WebNest.jsAWS
CROU
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CROU

Habit Formation & Goal Management Platform

React(Next.js)React Native WebviewNest.jsAWS

Portfolio Demos

Demos from real client projects we built. Try them yourself.

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Our Team

Ben Kim

Founder · Full-Stack Developer

Ben Kim

From planning to development and operations — building it through to the end, together with the team.

Expert Team, from Planning to Launch

SenaPM
BettyDesign
BenDev
JhinDev
Meet the Team

Frequently Asked Questions

The questions we hear most often from teams considering outsourced development.

What does Evergreen Dev build?

Evergreen Dev is a full-stack software agency covering web, mobile apps (iOS·Android), and backend. We handle the entire process — planning, design, development, deployment, and maintenance — in one team, and also deliver AI/AX solutions.

How is development cost determined?

Development cost depends on project scope, feature set, and timeline. After analyzing your requirements, we provide a tailored quote with staged deliverables, and you can also start with a core MVP and expand step by step.

How long does development take?

A typical web/app project takes 2–3 weeks for consultation and planning, and 4–8 weeks for development and QA. Timelines vary by scope; we share an exact schedule and milestones after requirement analysis.

Do you build with AI?

Yes. Evergreen Dev is an AI-native agency. We use the latest LLMs (Claude, GPT) and AI agents in both our process and your product to raise speed and quality, and we deliver LLM integration, RAG, and workflow automation (AX).

What tech stack do you use?

We build web with React, Next.js, Vue, and Nuxt; mobile apps with Flutter, React Native, or native Kotlin/Swift. Backends run on Node.js and Python, with LLMs (Claude, GPT) integrated for AI features.

Can you take over and maintain code built by another company?

Yes. We first review your existing code and system to assess its current state and risks, then propose maintenance, enhancement, or refactoring. We can take over even when handover from a previous vendor is difficult.

Do you provide maintenance after launch?

Yes. After launch we hand over code and documentation and continue supporting enhancements and maintenance. Long-term partnership is available.

How does collaboration work?

We work in the order of consultation → planning/quote → agile sprint development (weekly demo reviews) → handover. Progress is shared transparently through regular reviews.

How can I get a consultation?

You can reach us via the website inquiry form, email (ben@evegdev.com), Channel Talk live chat, or a scheduled video meeting. Tell us your requirements and we'll share a tailored quote and timeline.

Client Stories

"As an early-stage startup, our planning was uncertain, but the expert helped us think through our business model together. Thanks to this, we launched our MVP in just 3 weeks and secured initial investment."

CEOFintech Startup

"Unlike other outsourcing companies, the code quality is exceptionally high. Our internal development team that took over praised it as 'an extremely maintainable structure.'"

CTOE-commerce Platform

"We were skeptical about Flutter's cross-platform performance, but it delivered native-like performance. We perfectly caught both iOS and Android with one codebase."

Project ManagerO2O Service

Get In Touch

Ready to discuss a new project or need technical consultation? Reach out anytime. We'll propose solutions optimized for your business.

Company: EVERGREEN DEV

Business Reg. No: 366-72-00644

Industry: Information & Communications

Category: Computer Programming Services

6F, 35 Millaksubyeon-ro 17beon-gil, Suyeong-gu, Busan, South Korea