Most app developers think localization means translating the entire app. That's one kind of localization — and it's expensive. But App Store localization is different. You can localize your metadata, screenshots, and keywords for a new market without changing a single line of code or string in your app. And the download lift can be substantial.
Why Localization ROI Is So High
When you localize your App Store listing for a new country, the store algorithm begins surfacing your app to users searching in that language. You're not just translating words — you're unlocking an entirely new keyword index. An app that has 100 indexed keywords in English might gain 80 more through a Japanese localization, targeting a market with completely different competition dynamics.
Apps with localized listings in 10+ languages receive 128% more downloads on average than English-only equivalents, according to App Store analysis data.
High-Priority Markets to Start With
- Japanese — massive app spending per user, lower competition in many categories
- German — high-income market, strong preference for localized content
- Brazilian Portuguese — largest app market in Latin America by volume
- Korean — high smartphone penetration, strong app culture
- French — covers France plus many African markets with the same listing
- Simplified Chinese — enormous market, though App Store access requires additional steps
What to Localize (and What to Skip)
At minimum, localize your title, subtitle/short description, and keywords. These directly impact search ranking in the target locale and cost relatively little to translate properly. This alone will get your app indexed for local search terms.
For higher-ROI markets, also localize your screenshots. Users are more likely to convert when they see text in their language. If your screenshots contain English captions, users in Japan can't quickly scan the benefits — that friction costs you conversions.
Your full description is lower priority from a ranking perspective but important for high-intent users who actually read it. If budget allows, localize it. If not, start with the higher-leverage items.
Translation vs. Transcreation
Literal translation of App Store copy often produces awkward, unnatural text. The phrase that converts US users may have entirely different connotations in Japan. For key copy — title, subtitle, first 3 lines of description — invest in transcreation: working with someone who understands both the language and the local app culture, not just someone who translates words.
Keyword Research in New Languages
Your English keyword strategy won't translate directly. Users in Germany search differently than users in the US, even when searching for the same type of app. For each language localization, do fresh keyword research using that language — ideally with input from a native speaker who understands the search behavior.