Korean App Store Metadata Localization Guide

Why is direct translation not enough for Korean app metadata?

Source metadata is usually shaped by the search behavior, category language, and character constraints of its original market. Translating it line by line carries those assumptions into Korean. A literal category term may be understandable yet uncommon in Korean searches. A benefit-led English phrase may need more product context in Korean. A compact English noun stack may become vague or mechanical when reproduced in Korean.

The listing also has two jobs at once. It must help the right user discover the app, and it must help that user decide whether the app fits. Search language and conversion language overlap, but they are not identical. Repeating keywords everywhere can weaken the promise, while elegant brand copy can leave the category unclear.

AppTweak’s guide to localizing an app for Korea separates title and subtitle decisions, keyword or description work, and creative localization. Its useful lesson is that the English brand name does not always need to disappear, but the visible supporting message should still be meaningful in Korean. Treat examples and older market figures as directional context, not as proof that one naming formula will work for every category.

What should you research before writing Korean metadata?

Begin with evidence about the product and its Korean category. A translator cannot choose an effective search phrase if the team has not defined the user, use case, and competitive frame. Build a small research sheet before drafting.

Collect:

1. Current Apple App Store and Google Play URLs, locales, and live fields.

2. The primary Korean user and the problem they want to solve.

3. The product’s differentiating mechanism, not only its marketing slogan.

4. Korean search suggestions and category terms observed in each store.

5. Relevant Korean competitors and international apps that serve the same need.

6. Repeated terms in competitor names, subtitles, descriptions, and screenshots.

7. Terms from Korean reviews, support questions, communities, or paid-search data when available.

8. Claims, feature names, and brand terms that must remain accurate across the listing and product.

Do not convert this into a frequency contest. A popular term can be too broad, highly competitive, or wrong for the product. Record each candidate’s meaning, user intent, relevance, and supporting evidence. Search the actual Korean storefront rather than relying only on a general web keyword tool; app-store queries describe tasks and categories differently.

Keep Korean and English variants visible during research. Korean users may recognize an English brand or product term while searching the category in Korean. The decision should be based on observed usage and brand clarity, not a rule that every English word must be removed.

How do you build the message hierarchy before translating?

Write one sentence that the listing must make clear: “This app helps [Korean user] do [specific task] with [meaningful difference].” Then assign each part of that promise to a field.

A practical hierarchy is:

• App name: identify the brand and, when appropriate, the category or core task.
• Subtitle or short description: explain the most important value or use case without merely repeating the name.
• First screenshot messages: show how the promise becomes a recognizable action or outcome.
• Opening description: confirm who the app is for, what it does, and why its approach matters.
• Supporting description: clarify features, use cases, requirements, and trust information.
• Update text: explain the current change in language a user can understand.

This hierarchy prevents every field from carrying the same slogan. It also gives the Korean writer permission to restructure the source while protecting its meaning. If the team needs a broader inventory covering in-app strings, onboarding, payments, and support, use the Korean app localization scope and QA checklist. Metadata should be a defined workstream inside that larger release plan.

How should Apple App Store metadata be localized for Korea?

Apple lets teams add languages and localized metadata in App Store Connect. Its official app information localization guide explains that localized keywords can support search in the relevant storefronts and that fallback behavior applies when a user’s language does not match an available localization. It also distinguishes App Store metadata from localization inside the app binary.

For the Korean listing, review each field separately:

App name and subtitle

The name must remain recognizable while making the app’s role clear. Test Korean-only, brand-plus-Korean, and retained-brand options where the brand permits them. Read each version aloud and inspect it in the store layout. Korean characters may be counted as individual characters, but visual fit and readability still matter.

The subtitle should earn its space. Avoid repeating words already present in the name unless repetition is essential for comprehension. Prefer a concrete use case or differentiator over a vague promise such as “a smarter life.”

Keyword field

Build the keyword field from researched Korean and relevant English terms, then remove duplicates, irrelevant words, competitor marks, and unsupported claims. Apple states that its keyword field is limited, so every candidate needs a reason to be included. A fluent translation of the English keyword string is not research.

Keep a record of the final terms, their intent, and the field where each is targeted. This prevents a later editor from replacing a chosen term with a smoother synonym that has different search behavior.

Promotional text, description, and update notes

Use promotional text for a timely customer-facing message, not as a substitute for a missing value proposition. Open the description with product clarity, then support the decision with features, use cases, requirements, and credible proof. Update notes should tell the user what changed rather than repeat an internal ticket title.

How is Google Play Korean metadata different?

Google Play uses a name, short description, and full description rather than Apple’s separate hidden keyword field. Google’s official store-listing setup reference lists a 30-character app name, an 80-character short description, and a 4,000-character full description. It also allows localized names and in-language graphic assets.

That structure changes the writing job. The short description must be understandable and persuasive as visible copy. The full description should use relevant Korean category language naturally, but a block of repeated terms is neither useful to readers nor a safe metadata strategy. Keep the opening concise enough to communicate value before expansion.

Google may show an automated translation when a team has not supplied its own version. That is a fallback, not a finished Korean market message. A controlled listing should use approved Korean text and matching localized creative assets, with someone responsible for the final implementation.

Do not force Apple and Google Play into one spreadsheet cell. Share the research and glossary, then write platform-specific fields. The constraints, search inputs, and visible hierarchy are different.

Should screenshot captions be part of metadata localization?

Yes. A user evaluates the words and visuals as one product page. If the subtitle promises a simple planning tool but the screenshots present technical feature names with a different tone, the listing feels assembled rather than designed.

For each screenshot, define one job:

• Establish the primary use case.
• Show the key action or workflow.
• Explain one differentiating feature.
• Resolve a trust or compatibility question.
• Show the result a user can reasonably expect without inventing a claim.

Keep captions short and make the underlying interface legible. Translate text inside device screens when it affects comprehension. Use the same approved feature terms as the listing and product. If the creative shows a price, date, currency, map, notification, or example account, confirm that it makes sense for Korea and does not create a misleading impression.

Treat screenshot localization as message adaptation plus design QA. The body text can be excellent while the image is clipped, visually dense, or still contains source-language elements.

What belongs in a Korean metadata localization brief?

A buyer-ready brief should define the work well enough that writing, design, product, and store-operations teams can approve the same artifact. Include:

• Target stores, countries, locales, devices, and launch date.
• Current live URLs and a field-by-field source export.
• Target user, category, conversion action, and primary use case.
• Brand name rules, product glossary, tone, and prohibited terms.
• Approved features, proof, and claim restrictions.
• Korean keyword evidence and the owner of final targeting decisions.
• Screenshot source files, device frames, text layers, and design constraints.
• Character limits, delivery format, and store-entry owner.
• Review roles for language, product facts, design, policy, and final release.
• Measurement window and the metrics used after publication.

Deliver separate columns for source text, Korean text, back explanation when needed, character count, keyword purpose, status, reviewer, and implementation note. Preserve field identifiers so the final copy cannot be pasted into the wrong locale or platform.

When a Korean term changes during review, update the glossary and every affected field together. The Korean language QA checklist provides a reusable way to separate linguistic, contextual, technical, visual, and final-consistency checks.

How should you QA the listing before release?

Review the imported listing, not only the translation file. Use the target Korean storefront or a preview that reflects the final configuration.

Confirm that:

• The correct Korean locale is active and fallback text is intentional.
• The name, subtitle or short description, and opening screenshots communicate one coherent promise.
• Character limits are met without clipped or unfinished wording.
• Korean spacing, particles, sentence endings, punctuation, and tone are consistent.
• Search terms remain relevant to the actual product and do not use protected competitor language.
• Features, prices, requirements, and claims match the current product.
• Screenshot captions match the visible interface terminology.
• Source-language text is not left inside images, previews, or update notes.
• Links, support details, and privacy information point to the intended Korean experience.
• The installed app fulfills the promise made on the listing.

Give issues a severity and an owner. A wrong price or misleading claim is a release blocker. A preferred synonym may be a later refinement. This distinction prevents cosmetic debate from delaying correction of material errors.

How do you test Korean metadata after launch?

Record the publication date and the exact version of every field and creative. Without that baseline, later movement cannot be connected to a controlled change.

Use store-console data to watch relevant keyword visibility, product-page impressions, page-to-install conversion where available, and performance by storefront or acquisition source. Do not interpret a ranking change as proof of one cause. Product updates, paid traffic, featuring, seasonality, reviews, and competitor activity may change at the same time.

Test one meaningful hypothesis at a time. For example, compare a category-led subtitle with a use-case-led subtitle, or test a clearer first-screenshot sequence. Keep the rest of the message stable when possible. Define the observation window before launch and document what would count as a useful result.

Localization is not finished when the Korean text is first approved. New features, screenshots, pricing, support terms, and seasonal messages create ongoing metadata work. Add a Korean review step to the release calendar so the listing does not drift away from the product.

Frequently asked questions

Is Korean ASO the same as translating an app listing?

No. Translation transfers meaning between languages. Korean ASO localization also researches local search language, prioritizes messages for each store field, adapts creative copy, checks implementation, and establishes a test plan. A project may include both, but the deliverables and review criteria should be explicit.

Do we need separate Korean copy for Apple and Google Play?

Yes. The brand promise and glossary should be shared, but the fields are different. Apple uses a subtitle and dedicated keyword field, while Google Play gives the short and full descriptions a different role. Write to the constraints and user experience of each store rather than pasting one translated block into both.

Ready to localize your app-store listing for Korea?

Korean App Store metadata localization should leave your team with more than fluent text. You should have a researched keyword set, a clear message hierarchy, platform-specific fields, localized screenshot copy, an implementation-ready handoff, and a measurable release baseline.

Danny’s work combines Korean IT marketing, Korean-market content production, localization, and collaboration with global clients. Share your current App Store and Google Play URLs, target Korean user, priority conversion action, source metadata, and launch timing through the form below. The Korean localization service can then be scoped around the listing decisions your team actually needs to make.