What Is App Localization?
App localization is the process of adapting your app and its store listing for different languages, regions, and cultures. It goes far beyond translation - true localization considers local conventions, cultural nuances, visual preferences, and market-specific user behavior.
For ASO specifically, localization means creating store metadata (title, subtitle, keywords, description, and screenshots) tailored to each target market. A well-localized listing can increase downloads in a given market by 30-80%.
Why Localize Your Store Listing?
- 72% of app users prefer to use apps in their native language
- Only 25% of global app revenue comes from English-speaking markets
- Store algorithms favor localized listings for local search queries
- Localized apps see significantly higher conversion rates in target markets
- Apple and Google both support extensive localization (35+ and 75+ languages respectively)
Even if your app's UI is English-only, localizing your store listing (metadata and screenshots) can dramatically improve discovery and downloads in non-English markets.
Choosing Markets to Localize For
Tier 1: High Revenue Markets
- United States, United Kingdom, Canada, Australia (English)
- Japan (Japanese)
- South Korea (Korean)
- Germany, Austria, Switzerland (German)
- France (French)
- China (Simplified Chinese - Android only or regional stores)
Tier 2: High Growth Markets
- Brazil (Portuguese)
- Mexico, Spain, Latin America (Spanish)
- India (Hindi, English)
- Indonesia (Bahasa Indonesia)
- Saudi Arabia, UAE (Arabic)
- Turkey (Turkish)
- Russia (Russian)
How to Prioritize
Use this framework to decide which markets to localize first:
- Check existing organic traffic - App Store Connect and Google Play Console show downloads by country
- Evaluate market size - Total addressable market for your app category
- Assess competition - Less competition in a market means easier ranking
- Consider monetization - Some markets have high download volume but low purchasing power
Store Listing Localization Guide
Title and Subtitle
- Research keywords in the target language (do not just translate English keywords)
- Use local tools like AppTweak's localization features to find native search terms
- Consider that keyword behavior differs by language and culture
- Character limits remain the same regardless of language
Keywords (iOS)
- Native speakers search differently than direct translations suggest
- Use local ASO tools or native consultants to identify actual search terms
- Competitor analysis in each market reveals local keyword opportunities
- Some languages require more characters to express the same concepts
Description
- Adapt the messaging, not just the words
- Reference local use cases and scenarios
- Adjust social proof (mention local user counts if available)
- Consider reading direction for Arabic and Hebrew
Screenshots and Videos
| Localization Level | Effort | Impact |
|---|---|---|
| Translate text overlays only | Low | Moderate |
| Translate + adapt imagery | Medium | High |
| Fully custom per market | High | Highest |
At minimum, translate all text on your screenshots. For high-priority markets, consider:
- Using models or imagery that resonates locally
- Showing local content (maps, currency, language in the app UI)
- Adapting color schemes if they have different cultural meanings
- Showing locally relevant features prominently
Beyond Translation: Cultural Adaptation
Date and Number Formats
- MM/DD/YYYY (US) vs DD/MM/YYYY (most of Europe) vs YYYY/MM/DD (East Asia)
- Decimal separators: 1,000.00 (US/UK) vs 1.000,00 (Germany, Brazil)
- Currency symbols and placement vary by region
Color and Design Preferences
- Red means luck and prosperity in China but danger in Western markets
- White is associated with mourning in some East Asian cultures
- Minimalist designs perform well in Japan and Scandinavia
- Bolder, more colorful designs may work better in South Asia and Latin America
Content and Feature Emphasis
- Payment methods vary by region (mobile payments dominate in East Asia)
- Privacy concerns differ significantly between markets
- Social sharing features may need platform adjustments (WeChat vs WhatsApp vs LINE)
Localization Workflow
- Audit your current global performance - Identify opportunity markets
- Research keywords and competitors in target languages
- Create a localization brief for each market with key differences
- Work with native speakers - Machine translation is insufficient for ASO
- Localize store metadata first - Lower effort, immediate impact
- Localize screenshots - Significant conversion improvement
- Monitor performance per locale - Track keyword rankings and conversion by market
- Iterate based on data - Optimize performing markets, reconsider underperforming ones
Common Localization Mistakes
- Using Google Translate for store listings - Machine translation misses nuance and keyword opportunities
- Applying one Spanish localization everywhere - Mexican Spanish differs significantly from Castilian Spanish
- Ignoring right-to-left languages - Arabic and Hebrew need special attention for screenshots
- Not localizing visual assets - Text-heavy screenshots in a foreign language reduce conversion
- Localizing once and forgetting - Markets evolve; review localizations quarterly