Localization is not just translation. Each locale you add to the App Store gives you a fresh keyword field, a fresh title, and a fresh subtitle — a completely separate ranking surface. Here is how to use that strategically.
Why localization is an ASO multiplier, not just a translation task
Most developers think about localization as adapting copy for a different language. From an ASO perspective, it is something more powerful than that. On the App Store, every locale you support gets its own keyword field. That means a fully localized app with ten locales has ten separate 100-character keyword fields — ten distinct ranking surfaces — instead of one.
Google Play indexes the long description in each locale separately. A localized description is not just more accessible to local users; it is more discoverable by the local algorithm. An English-only listing in the Japanese App Store is competing at a structural disadvantage against localized alternatives.
Which locales to prioritize first
Not all markets are equal. Prioritize based on the combination of market size, competition level, and the cost of localization for that language.
- English (US + UK): Your baseline. Always complete and optimized before expanding.
- German, French, Italian, Spanish (Western Europe): Large markets, relatively similar to English-language store behavior, manageable translation cost.
- Japanese and Korean: High-value markets with strong in-app purchase culture. Localization quality expectations are high — machine translation performs poorly here.
- Portuguese (Brazil): One of the largest Android markets in the world and often underserved by English-only apps.
- Arabic: Large market, growing quickly, right-to-left layout requires extra screenshot adaptation.
Localizing keywords, not just copy
The most common localization mistake is translating your English keyword list directly. Search behavior differs by language. Users in Japan may search for the same app using entirely different phrases than users in Germany, even if both are looking for the same outcome.
For each locale, treat keyword research as a fresh exercise. What does a local user type when they need your app's outcome? What genre, use case, or format terms are common in that language? ASOZen supports keyword analysis across multiple locales so you can compare difficulty and traffic signals before committing to a keyword set.
Screenshots and creative across locales
Screenshots with text overlays need to be adapted, not just translated. A direct word-for-word replacement often breaks the visual hierarchy because German words are longer than English ones, Arabic reads right to left, and Japanese often requires a different density of text.
At minimum, produce locale-specific screenshots for your highest-priority markets. For lower-priority markets, text-free screenshots are often a better choice than poorly adapted ones. Use Release Planner to coordinate metadata and creative changes for each locale so nothing ships mismatched.
Analyze your app across the locales that matter most
Check how your listing performs in different markets, find keyword gaps, and plan locale-specific releases.