Introduce your business or organization.
A mobile-ready site that explains what you do, where you are and how to reach you.
Websites and automation,
with the scope agreed first.
Business websites, booking and inquiry flows, Telegram bots, and less repetitive work. We understand your features and operations, then agree the price, timeline and revision scope before building.
One-page website: KRW 200,000 before VAT Β· KRW 220,000 including VAT
At Cometro, one developer takes responsibility for your consultation and project scope.
Start with what you need now.
Accept bookings and consultations.
Choose between a simple request form and automatic booking confirmation, then agree the right scope.
Get the updates you need in your messenger.
Connect Telegram commands to an official API for useful information and work alerts.
Stop moving the same data by hand.
We review your inputs, rules and outputs, then automate one workflow at a time.
Review a service you've already built.
Check search crawlability or pre-launch access and payment flows, with a clear list of fixes.
Need to edit text or photos yourself? Mention it in your inquiry. An editing interface is separate from a basic website; we'll explain the right tools and costs first.
Fixed prices for a simple website. A clear quote for the features you need.
One-page website Β· S
Build fee / total including VAT
KRW 200,000 / 220,000 Β· fixed
1 Korean page, up to 5 sections, mobile-ready, 1 inquiry form
After content sign-off: 3β5 business days
Business website, up to 5 pages Β· D
Build fee / total including VAT
KRW 550,000 / 605,000 Β· fixed
Up to 5 Korean pages, shared design, mobile-ready, 1 inquiry form
After content sign-off: 7β15 business days
Booking & inquiry intake Β· D
Build fee / total including VAT
KRW 550,000 / 605,000 Β· fixed
Up to 5 pages, saved requests, email alerts; staff confirm bookings
After content sign-off: 7β15 business days
Booking & business workflow Β· P
Build fee / total including VAT
From KRW 1,200,000 / 1,320,000
One workflow, login, admin, up to 5 screens
After content sign-off: 10β20 business days; bookings 15β30
Telegram bot
Build fee / total including VAT
From KRW 500,000 / 550,000
1 bot, up to 3 commands, 1 official API, permissions and error logs
After content sign-off: 7β15 business days
Workflow automation
Build fee / total including VAT
From KRW 1,200,000 / 1,320,000
One input β process β one output, 1 trigger and usage notes
After content sign-off: 10β20 business days
Basic technical SEO audit
Build fee / total including VAT
KRW 50,000 / 55,000 Β· fixed
Up to 5 public URLs: metadata, robots and sitemap checks, fix list
After content sign-off: 1β3 business days
Technical SEO improvement guide
Build fee / total including VAT
From KRW 300,000 / 330,000
Up to 5 key URLs, rendering and technical review, developer guide, 1 recheck
After content sign-off: Guide: 2β3 business days; recheck: 1 after implementation
Pre-launch security review
Build fee / total including VAT
From KRW 100,000 / 110,000
Agreed authentication, access, database rules and payment flow; 1 recheck
After content sign-off: Audit: 1β3 business days; recheck: 1
Website prices assume you provide the copy and photos. Basic metadata, sitemap, HTTPS and connection to your own hosting are included. S/D/P packages include 5 agreed-scope revision rounds; bots and automation include 2; audits include 1 report correction round.
CMS, forums, multilingual content, payments, Kakao notifications, extra APIs and new pages are quoted separately. Accepting requests is different from automatically confirming bookings. Package P excludes payment processing, settlement and refunds. Hosting, domains, APIs and messaging fees are separate. Basic SEO audits do not include code changes; security patches are quoted separately.
For prices marked βfromβ, we'll confirm the final quote after reviewing the features and operating environment. Waiting for materials, account verification, external reviews or another developer's changes is scheduled separately. Availability and dates are agreed during consultation.
App redesign, from UX review to responsive HTML/CSS.
Find the friction in your current app and redesign the screens that matter first. Start with just two screens. We deliver a clickable HTML prototype and source for your development team, with responsive HTML/CSS available when needed.
UX review + 2 key screens
Build fee / total including VAT
KRW 300,000
Review 1 key flow and up to 5 existing screens; redesign the 2 most urgent screens. Includes a 6β8-page findings PDF, 2 screen PNGs, a clickable HTML prototype and source.
After content sign-off: 7 days Β· 1 revision
App UX audit report
Build fee / total including VAT
KRW 1,000,000
An audit without screen design: 1 service, up to 2 key flows and 10 existing screens. Includes a 12β18-page PDF prioritizing 10 improvements and their rollout order, plus a CSV improvement list.
After content sign-off: 9 days Β· 1 revision
Key screen redesign
Build fee / total including VAT
KRW 2,200,000
Audit up to 2 key flows and 10 screens, then redesign 5β10 key screens in one design direction. Includes a clickable HTML prototype and source ZIP, screen PNGs, and a PDF guide to colors, type, spacing and components.
After content sign-off: 23 days Β· 3 revisions
Redesign + responsive HTML/CSS
Build fee / total including VAT
KRW 3,800,000
Everything in redesign, plus responsive HTML/CSS for up to 10 redesigned screens. Includes a basic accessibility checklist and a developer integration guide. Data connections and feature development are not included.
After content sign-off: 35 days Β· 4 revisions
All prices include VAT. The 7, 9, 23 and 35-day timelines are calendar days from the agreed start date, after materials and scope are confirmed; revisions and review are included. We'll agree the start and delivery dates during consultation.
Upgrade to key-screen redesign or responsive implementation within 30 days of the two-screen review, and we'll credit the KRW 300,000 already paid. We carry the reviewed flow and two screens forward.
Design deliverables are a clickable HTML prototype and source, rather than a Figma file. Feature development, API integration, data connections, login, payments, native app changes, packaging, store submission and production deployment are outside the base scope. Extra screens and functions are quoted separately.
See the difference, before and after.
Independent samples redesigned from public screens. Compare the layout and action hierarchy in an ordering flow and a library search.
Consumer app Β· ordering flow
Independent proposal β no affiliation with the organization
public LOTTE EATZ screens
Not a commissioned project or partnership
Public app Β· library search with KRDS
Independent proposal β no affiliation with the organization
public store screens of the Seoul Library app
Not a commissioned project or partnership
What we'll build and how we'll review it, agreed before work starts.
1. Understand the project
We discuss your goal, essential features, references, budget and target date. We also agree who will edit content and manage accounts after launch.
2. Agree scope and quote
Pages, features, revisions, delivery criteria and dates go into writing. Scope changes proceed only after extra cost and time are agreed.
3. Build and review
We confirm the design and implement the agreed features, checking mobile layouts, forms, permissions and relevant error cases.
4. Handoff and operating guidance
We hand over the agreed deliverables, source, operating access and instructions. New contracts include 3 months of support after final deployment for reproducible bugs in agreed features. Content changes, new features and external service changes are quoted separately.
Websites we've built across industries. From introductions to working features.
Herbal tea experience venue
Introduction and booking in Korean, English, Japanese and Chinese
Online mathematics education
Teacher profiles, grade curricula, reviews, login and classroom
Education association
Year-by-year milestones and key activities
Creator management
Talent profiles and audition applications
Export licensing & regulatory consultancy
Korean/English company and service pages, news and inquiries
Small-home development, construction & management
Business areas, project examples and responsive layouts
Precious metal trading
Buying/selling price tables by item and store information
Casting matchmaking platform
Landing page showing profiles, matching UI and both signup journeys
Client reviews are shown in their original Korean.
From clients who trusted us
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Can a website really start at KRW 200,000?
Yes: one Korean-language page, up to 5 sections and 1 inquiry form, with your copy and photos ready, costs KRW 200,000 before VAT or KRW 220,000 including VAT. Other scopes are quoted after reviewing pages, features and operations.
How is a form different from a booking system?
A form collects requests, then your staff contact the customer to confirm. Instant time-slot confirmation, double-booking prevention or payment needs a separate booking-feature quote.
Can you finish in a day?
We confirm dates after reviewing materials and scope. A basic one-page site takes 3β5 business days for production and review, depending on our queue and when materials arrive.
What counts as one revision round?
You send one consolidated list of agreed-scope changes, then review the result. New pages, features or a full redesign need a separate quote. Missing contracted items and bug fixes don't count against your rounds.
Can I update the content myself?
A basic business website doesn't include an editing dashboard. If you need one, we'll agree the CMS or other tools and costs first. Source and operating access are handed over as contracted.
What costs are separate from development?
Hosting, domains, APIs or messaging may have ongoing charges. The quote separates fees paid through your own accounts from the one-time build fee. Managed operations are scoped separately.
What's included in 3 months of support?
For new contracts, we support reproducible bugs in agreed features for 3 months after final deployment. Content replacements, added features and external policy or API changes are separately quoted. Existing clients keep their original contract terms.
Do you guarantee rankings or perfect security?
We review agreed technical items and report what we verified, alongside remaining work. We don't guarantee rankings, traffic growth or the removal of every vulnerability.
Tell us a little about your project.
You don't need a finished brief. Start with your goal and essential features. We'll send an initial scope-check reply within 2 business days. Business days are MondayβFriday excluding public holidays; consultation hours are 10:00β18:00 Korea time. This is a response target, not a commitment to start production.