HB Crossborder Talk about a build

Websites and AI tools that bring in customers from abroad

Landing pages, multilingual sites, AI chatbots, in-house AI tools and web apps, built by someone who does cross-border marketing every day.

95KO
96EN
99ZH
PageSpeed mobile ⁠·⁠ 2026-10-01 ⁠·⁠ Measure it yourself

Mobile performance 95 to 99

Your site is built the same way as this one. We bring it to 90 or above at handover and fix it free if it falls short.

Enquiry to report, hands-free

This site's free check runs on its own: saved, alerted, PDF written and emailed.

10 example sites in 3 languages

Designed for real industries and countries, and built in code.

See example sites

Services and prices

Prices in USD, no Korean VAT for businesses outside Korea. Scope is fixed in a one-page spec. If you’re unsure, start with Standard. Billed 50% upfront, 50% on delivery.

Every project handled by the founder, Euihyeon MoonPreviously ran Naver and Google marketing at a Korean law-marketing agency, and marketing at a travel agencyAbout us

01 / 06

Landing page with enquiry automation

A page that turns ad clicks into enquiries

Who it suits: Teams that need a campaign or launch page fast

You see the main screen design before you pay. Enquiries arrive in a sheet, by email and on Telegram.

See the example sites
  1. BasicOne page in one languageUSD 190

    One page, enquiries to email and a sheet, search registration

    Delivery
    4 days
    Revisions
    2
  2. StandardSuggestedAdd a second languageUSD 360

    Second language, alerts and confirmation emails, visitor analytics

    Delivery
    6 days
    Revisions
    3
  3. ExtendedThree languages plus ad testingUSD 580

    Third language, two design options, one A/B test, 30-day conversion report

    Delivery
    9 days
    Revisions
    3

What's included

  • Main screen design before you pay
  • Enquiry form to a Google Sheet
  • Staff alerts and confirmation emails
  • Search registration and analytics
  • English version (Standard and up), Chinese too (Extended)

Add-ons Extra language USD 110, payment button USD 160 (payment provider contract in your name)

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02 / 06

Multilingual company website

A company site people abroad can actually find

Who it suits: Companies selling abroad, and clinics, hotels or schools with foreign visitors

Not translated, rewritten in the words people in each country actually search. Registered with Google and Korean portals before handover.

See the example sites
  1. BasicStart in two languagesUSD 580

    Five pages in two languages, enquiry automation, privacy policy template

    Delivery
    14 days
    Revisions
    3
  2. StandardSuggestedWhen you want customers from foreign searchUSD 1,090

    Eight pages in Korean, English and Chinese, rewritten for local search, content editor

    Delivery
    21 days
    Revisions
    3
  3. ExtendedFour languages and paymentsUSD 1,960

    Twelve pages in four languages, blog, international payments, 30-day search report

    Delivery
    30 days
    Revisions
    4

What's included

  • Pages rewritten for local search
  • Google and Korean portal registration
  • Enquiry automation
  • Content editor (Standard and up)
  • Blog and international payments (Extended)

Add-ons Extra page USD 80, extra language USD 220

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03 / 06

Multilingual AI support chatbot

A chat window that replies first, day or night, in three languages

Who it suits: Clinics, hotels, schools and restaurants with many foreign enquiries

Answers only from your material and hands anything else to a person. Bookings run through the same flow.

Chatbot exampleOne question, answered in three languages

Are you open on Saturdays?

Yes, 9:00 to 13:00 on Saturdays. You can book a time right below.

Example screen. Real answers come only from your own material.
  1. BasicStart with common questionsUSD 320

    40 common questions, one language, web chat window, hand-off to staff

    Delivery
    7 days
    Revisions
    2
  2. StandardSuggestedWhen many enquiries come from abroadUSD 720

    Learns up to 50 pages of documents, three languages, conversation log, 30-point answer check

    Delivery
    14 days
    Revisions
    3
  3. ExtendedWhen it should take bookings tooUSD 1,450

    Booking with calendar sync, admin conversation view, monthly question analysis

    Delivery
    21 days
    Revisions
    3

What's included

  • Answers from your own material
  • Hand-off to staff when unsure
  • Korean, English and Chinese (Standard and up)
  • Conversation log sheet
  • Bookings with calendar sync (Extended)

Add-ons Extra language USD 150, care plans from USD 22 a month

Note AI usage is billed to your own account at cost, usually USD 10 to 25 a month for one chat window, with a monthly cap.

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04 / 06

Custom AI work tool

Quotes and reports drafted for you, not by hand

Who it suits: Offices that still write quotes, reports, translations or data summaries by hand

Start with one repeated task, such as turning an enquiry into a quote PDF or product details into Korean, English and Chinese copy.

  1. BasicOne repeated task firstUSD 430

    One repeated task automated with Google Sheets or a script

    Delivery
    7 days
    Revisions
    2
  2. StandardSuggestedA tool your team uses dailyUSD 940

    Web screen with login, AI connection, two tasks, PDF and Excel output

    Delivery
    14 days
    Revisions
    3
  3. ExtendedA whole team workflowUSD 1,880

    Four tasks, internal document search, two permission levels, usage log

    Delivery
    28 days
    Revisions
    3

Tasks you can hand over (Basic 1, Standard 2, Extended 4)

  • Quote or contract drafts as PDF from an enquiry
  • Product copy in Korean, English and Chinese
  • Monthly reports from sheet data
  • Sorting and summarising incoming email
  • Answers from your manuals, with sources

Add-ons Extra task USD 220

Note A real example: the free check report on this site is written by a tool like this. We do not build tools that make personal, medical or financial decisions on their own.

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05 / 06

Web app and SaaS MVP

A working product in weeks, not months

Who it suits: Founders testing an idea, small teams that need an internal tool

Accounts, data, admin and payments set up in your name from day one. New features after launch continue on a monthly plan.

  1. BasicTest the ideaUSD 1,300

    One core feature, sign-up and login, basic admin

    Delivery
    14 days
    Revisions
    2
  2. StandardSuggestedTake paying customersUSD 2,610

    Three core features, admin, payments, email alerts

    Delivery
    28 days
    Revisions
    3
  3. ExtendedRun it as a subscriptionUSD 4,350

    Five core features, subscriptions, two languages, analytics, feature spec

    Delivery
    42 days
    Revisions
    3

Features it can include (scope per tier above)

  • Sign-up and login
  • Admin screens
  • One-off and subscription payments in your name
  • Email and Telegram alerts
  • Usage analytics
  • Install to the phone home screen

Add-ons Extra feature from USD 370, after the spec

Note Installable on phones as a web app (PWA). We do not publish to app stores.

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06 / 06

Launch audit for AI‑built apps

Close the risky gaps before you launch

Who it suits: Teams that built a web service with AI and want it checked before launch

Reviewed by someone who builds and runs their own services with the same AI tools. Exposed secrets, permissions, speed and deployment, with fixes in order.

  1. BasicFind out what is riskyUSD 290

    Check-up report and the ten fixes to do first

    Delivery
    3 days
    Revisions
    1
  2. StandardSuggestedGet the risky parts fixedUSD 870

    The top ten fixed, with a before-and-after comparison

    Delivery
    10 days
    Revisions
    2
  3. ExtendedSet up for running itUSD 1,880

    Hosting set up under your account, automated tests, 30-day error monitoring

    Delivery
    21 days
    Revisions
    2

What gets checked (every tier)

  • Secrets: API keys left in code or the browser
  • Access: pages visible without login or to other users
  • Input checks: odd values sent to forms and APIs
  • Speed: mobile load, heavy images, slow queries
  • Deploy and backup: account ownership, rollback
  • Error logging: would you know when it breaks

Add-ons Ten more fixes USD 440

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What every build includes

Built in your name
Domain, hosting, database and AI accounts are all opened in your name. We join as a collaborator.
Your code, handed over
Once paid in full, the rights to the work and the code repository are transferred to you.
Proven with scores
Mobile performance brought to 90 or above, with accessibility and search scores in a handover report.
Training included
A 30-minute video session and an operating guide, plus free bug fixes for 30 days.
It starts with a one-page spec
Screens, features, languages and timing agreed on one page. Anything outside it is quoted before work starts.
Monthly costs up front
Maintenance and AI usage costs are given in numbers before you start.

After launch, we can keep it running

Monthly plans you can add to any build. Cancel any time.

BasicUSD 22 a month

Hosting, certificate and backup checks, one edit a month

CareUSD 72 a month

Five edits a month, security updates, monthly report

GrowthUSD 220 a month

Care plus an international search report, two multilingual posts a month and quarterly suggestions

How it works

  1. 30-minute call

    What you need, who will use it and by when. Free.

  2. One-page spec and quote

    Screens, features, languages and timing agreed on one page.

  3. Build

    You get a working preview to click through and comment on.

  4. Handover and training

    Moved into your accounts, with training, a guide and a score report.

What we do not take on

  • Native apps for the app stores
  • Large services built for thousands of simultaneous users
  • Features where AI makes financial or medical decisions
  • Scraping other sites without permission
  • Guaranteed sales or search rankings

Common questions

Any other question? Add it to your build enquiry and we reply within one business day. Talk about a build

Who pays for AI usage?

You pay what you use through your own AI account. One chat window is usually USD 10 to 25 a month, and we set a monthly cap.

What about domain and hosting?

Separate from the build price and paid in your name. A domain is usually USD 15 to 25 a year; hosting can be free for smaller sites.

Can it take payments?

Yes. International payments run through Stripe or PayPal in your name. Provider fees are not part of our quote.

Can I move to another provider later?

Yes. Every account is in your name and the code is handed over, so you can move at any time.

What if the AI gives a wrong answer?

It answers only from material you provide and passes anything else to a person. We test it with at least 30 questions before handover.

Tell us what you want built

You get the right service and a quote. No website yet? That’s fine.

The founder, Euihyeon Moon, replies in person

What happens next
  1. Reply within one business day
  2. Free 30-minute video call
  3. One-page spec and quote