When the user wants to localize their App Store listing for international markets. Also use when the user mentions "localization", "translate my app", "international markets", "expand to new countries", "localize metadata", or "which countries should I target". For keyword research in specific markets, see keyword-research. For metadata writing, see metadata-optimization.
Start a fresh conversation. Replace the highlighted placeholders.
Use localization to recommend target App Store markets and produce culturally adapted listing guidance for [app and current metadata], prioritizing [target markets] against [growth and revenue goals].
Required inputs
[app and current metadata]
[target markets]
[growth and revenue goals]
User-approved starter prompt based on a pinned source version; check current skill requirements before running. Task evidence ↗
SKILL.md
name: localizationdescription: When the user wants to localize their App Store listing for international markets. Also use when the user mentions "localization", "translate my app", "international markets", "expand to new countries", "localize metadata", or "which countries should I target". For keyword research in specific markets, see keyword-research. For metadata writing, see metadata-optimization.metadata: version: 1.0.0
App Store Localization
You are an expert in App Store internationalization and localization strategy. Your goal is to help the user expand to new markets by localizing their App Store presence effectively.
Initial Assessment
Check for app-marketing-context.md — read it for current markets and languages
Ask for the App ID (to see current localizations)
Ask: Is the app itself localized (UI, content) or just the store listing?
Ask: Which markets are they considering?
Ask: Budget — professional translation or AI-assisted?
Market Prioritization
Tier 1 Markets (highest ROI for most apps)
Market
Language
App Store Code
Notes
United States
English
en-US
Largest market
United Kingdom
English
en-GB
Easy win if US is done
Germany
German
de-DE
Largest EU market
Japan
Japanese
ja
High ARPU, competitive
France
French
fr-FR
Large EU market
South Korea
Korean
ko
High smartphone penetration
China
Simplified Chinese
zh-Hans
Massive but complex (needs ICP)
Brazil
Portuguese
pt-BR
Largest LATAM market
Canada
English/French
en-CA/fr-CA
Easy win
Australia
English
en-AU
Easy win
Tier 2 Markets (good potential)
Spain (es-ES), Italy (it), Netherlands (nl), Sweden (sv), Russia (ru), Mexico (es-MX), India (en-IN/hi), Indonesia (id), Turkey (tr), Saudi Arabia (ar-SA)
How to Choose
Evaluate each market on:
Factor
Weight
How to assess
Market size
30%
iPhone user base in country
Competition
25%
How many localized competitors?
Effort
20%
Translation complexity, cultural distance
Revenue potential
15%
ARPU in the market
Strategic fit
10%
Does your app solve a local need?
Localization Checklist
Metadata Localization
For each target market:
Title (30 chars) — Localized with market-specific keywords
Subtitle (30 chars) — Localized with local keywords
Keyword field (100 chars) — Completely new research per market
Description (4000 chars) — Translated and culturally adapted
Promotional text (170 chars) — Localized for local events/seasons
What's New — Translated for each update
Screenshots — Text overlays translated, culturally appropriate imagery
App Preview Video — Subtitles or localized version
Critical: Keywords Are NOT Translations
The biggest localization mistake: Translating English keywords directly.
Instead:
Run keyword-research for each target market separately
Understand how locals search (different terms, different intent)
Use local autocomplete suggestions
Check what local competitors use in their metadata
Example:
English keyword: "budget tracker"
German: "Haushaltsbuch" (household book) — NOT "Budget Tracker"
Japanese: "家計簿" (household ledger) — completely different concept
Spanish: "control de gastos" (expense control) — different framing
Cultural Adaptation
Element
What to check
Screenshots
Currency symbols, date formats, number formats
Colors
Cultural color associations (red = luck in China, danger in West)
Imagery
Diverse representation, culturally appropriate
Tone
Formal vs informal varies by culture
Features
Highlight features relevant to local needs
Social proof
Use local press, local user counts if possible
Pricing
Local pricing expectations (purchasing power parity)
Localization Workflow
Phase 1: Research (per market)
Analyze top 10 apps in your category in the target market
Run keyword research with local seed terms
Identify local competitors and their positioning
Understand local App Store trends
Phase 2: Translation & Adaptation
For metadata (title, subtitle, keywords):
Use native speakers with ASO knowledge (not just translators)
Provide context: "This is an App Store title, must include [keyword]"
Review with keyword data — does the translation include high-volume terms?
For description:
Professional translation with cultural adaptation
Not word-for-word — adapt examples, references, humor