App Store localization tool

ASOMaster's Listing Studio localizes your name, subtitle and keyword field (or your Google Play title and descriptions) to up to 49 languages. For each language it proposes local candidate phrases, searches each one in that store, and picks the winner by demand and difficulty instead of translating word for word. You review every language before anything is published.

Listing Studio's languages table: a localized name and subtitle per language with its status. — Each language gets its own name and subtitle, built from tested local phrases.

Why not just translate the listing?

Because people search with local habits, not dictionary entries. A correct translation can be rarely searched, many markets search the English loanword, compounds and inflections change how a phrase is written, and Spanish in Spain differs from Spanish in Mexico. A translated listing reads well and often ranks for very little. The localization guide shows the pattern with real examples.

How does ASOMaster localize?

Choose an option and its core phrases. Pick the listing option you want to localize and two to four core phrases every language must carry.
Candidates per language. Your AI provider proposes local candidates for each core phrase in each language.
Measured in that store. Each candidate is searched in the matching market, and its demand and difficulty are measured there.
Winner and fields. The best candidate wins and the localized fields are written within that language's limits: 30 characters for the name and subtitle, 100 bytes for the keyword field, where Japanese, Chinese and Korean characters take three bytes each.
Your review. Edit any language, pick a different candidate, or redo one. A language that fails never stops the others, and you can finish the rest later.

Keywords on the Rankings board work the same way: add a keyword once and every tracked market gets the phrase locals type, checked in that store.

One keyword shown in several markets with its local phrase and rank in each. — One keyword, its local phrase and rank in each market.

Which AI does it use?

The one you already have: Claude Code, Codex, OpenCode, a local model through Ollama, or an Anthropic API key. ASOMaster sells no AI credits; your provider's limits and pricing apply. With Ollama, the text never leaves your computer. See AI providers.

What it doesn't do

It doesn't translate your app, screenshots or full description for you; Listing Studio focuses on the searchable fields, and the Copy step drafts descriptions and captions you then review.
It can't promise ranks. It picks phrases with evidence of demand and a beatable top ten; you still measure the result after release.

Next: the guide to the name, subtitle and keyword field, and the checklist before every app update.