Most developers treat the App Store and Google Play descriptions as an afterthought once the English version is locked. They run the text through a translation tool or hand it to a generalist, upload the same screenshots with overlaid English text, and move on. Then they wonder why conversion rates in Japan, Brazil, or Germany sit well below category averages while keyword rankings never climb.

AppTweak’s analysis of the top 1,000 apps and games in the U.S. market showed that 96% of top games localized their metadata in the previous year. The ones that skipped it simply did not appear in the same conversation. Localization is no longer optional for anyone serious about organic growth outside English-speaking territories.

The gap shows up most clearly in conversion. Games already convert lower than most other categories because differentiation is hard—one match-3 looks a lot like another until the player reads the description or watches the preview. When that description is in the wrong language, or worse, a stiff machine translation that ignores local search habits, the install rate drops further. Board games on the App Store have posted average conversion rates as low as 1.2% in recent U.S. data; many mid-core titles hover in the mid-teens. Localized listings regularly pull those numbers up.

Keyword coverage is the first place most teams get it wrong

English keyword research does not travel. A term that ranks well in the United States often has a different search volume, different competition, and sometimes an entirely different meaning once you switch languages. Japanese players search for specific mechanics and moods that do not map one-to-one with Western phrasing. Brazilian Portuguese users favor different long-tail combinations than European Portuguese speakers. Simply translating the English keyword list leaves large volumes of high-intent traffic on the table.

Google Play indexes the full long description, so there is room to weave relevant local terms naturally throughout the 4,000-character field. The App Store does not index the description at all; ranking power sits almost entirely in the title, subtitle, and the 100-character keyword field. That difference forces two separate writing approaches. Teams that paste the same copy into both stores waste the extra indexing space on Google Play and dilute conversion focus on Apple.

Native-language keyword research—done by people who actually play and talk about games in that market—closes the coverage gap. It also surfaces seasonal or cultural spikes that English tools never flag.

Descriptions that convert, not just describe

A store description has one job: turn a curious page visitor into an install. In non-English markets that job gets harder when the copy feels imported. Players notice when cultural references, humor, or value propositions stay locked to the source market. A description that works in the U.S. can read as tone-deaf or incomplete once it reaches South Korea or Mexico.

Real results track the difference. One mobile game publisher saw page conversion in Turkey rise from 15.8% to 18% within weeks of localizing both text and screenshots. In Germany the same approach lifted conversion by roughly 25 percentage points and simultaneously increased the number of people reaching the page. ZiMAD’s work on Magic Jigsaw Puzzles offers another data point: redesigning screenshots for Japanese visual density and expectations produced a 36% conversion lift on the App Store.

These lifts compound. Better keyword coverage brings more relevant traffic. Better local copy and visuals turn more of that traffic into installs. Higher install velocity then feeds the ranking algorithms, which improves visibility further.

Screenshots and previews are not secondary

Players decide in seconds. If the first three screenshots still show English UI text or Western-centric visual hierarchy, many leave before reading a word of the description. Localizing caption overlays is the minimum. Reordering shots to match local preferences—more character focus in some markets, denser information density in others—often moves the needle more than the text itself.

Custom product pages on the App Store and custom store listings on Google Play let teams test these variations without changing the default listing. Adoption remains surprisingly low among games, even though early data shows conversion lifts of several percentage points for those that use them.

What actually works in practice

Start with the markets that already show organic interest or where paid UA is performing. Run proper keyword research in those languages rather than translating the English set. Write the description for the local reader first, then check character limits and platform indexing rules. Localize the most visible creative assets—screenshots and preview videos—before expanding further. Measure conversion and ranking changes by market, not just global averages. Iterate.

The teams that treat store localization as pure translation keep underperforming. The ones that treat it as market-specific ASO—native keywords, culturally tuned messaging, platform-aware structure—see the conversion and visibility gains the data keeps pointing to.

Artlangs Translation has spent more than twenty years refining exactly this kind of work across 230-plus languages. With a network of over 20,000 professional translators and linguists, the company handles full game localization alongside video localization, short-drama subtitle work, multilingual audiobook dubbing, and large-scale data annotation and transcription. Their project history includes sustained partnerships with mobile publishers who needed store listings that ranked and converted in multiple regions at once. The difference between a listing that merely exists in another language and one that performs is usually measured in installs and revenue, not just linguistic accuracy.