Short answer: Japan first, done deep

Japan should be your first non-English App Store locale: top revenue per user worldwide, a huge iPhone base, and thin indie competition. Ship the ja locale with native Japanese keywords in each script (hiragana plus katakana, comma packed, no spaces) plus fully translated screenshots. Wait two quiet weeks for indexing, then judge downloads after two months.

Why Japan earns your first App Store locale slot

Japan pays more per user than any other mobile market, and that single fact reorders every localization plan. AppScreenshotStudio ranks Japanese second only to US English, LocalizeRank names Japan first in its indie priority order, and the Forasoft October 2026 playbook lists Japan as a tier-one non-English target with typical organic lifts of 50 to 150 percent per new market. The mechanism is simple. Japan has a huge iPhone base, shoppers who still find apps through search, and far fewer indie competitors shipping real Japanese listings than ship German or French ones. Your English listing already reaches every Japanese shopper who searches in English, which is almost nobody outside tech circles. One deep Japan pass (metadata plus screenshots plus native keyword research) buys more new downloads per hour than the same hours spread across three European locales. Fund Japan first, read the results, then roll the playbook to Korea or Germany with money the first win paid for.

Two objections come up at this point and both lose on the numbers. The first is that Japan feels hard because of the script. The script looks foreign until you see the routine: one section below turns hiragana, katakana, and kanji into packing steps you can follow without reading Japanese. The second is that Europe feels safer because the alphabet matches. Familiar letters do not pay your rent. Revenue per user does, and Japan leads the world on that number. Our localization strategy guide orders later waves the same way: fund what pays, then expand.

Japanese keywords run on three scripts, not one

Japanese shoppers can write the same word three ways, and your keyword field must cover the ways that matter. Hiragana is the native script, katakana covers foreign and tech terms, and kanji carries compact meaning in titles. A habit tracker might be searched in hiragana by one shopper, in katakana by the next, and by its kanji compound in a title tap. Translate your English keyword field word for word and you will miss two of the three doors shoppers walk through.

Two objections come up at this point and both lose on the numbers. The first is that Japan feels hard because of the script. The script looks foreign until you see the routine: one section below turns hiragana, katakana, and kanji into packing steps you can follow without reading Japanese. The second is that Europe feels safer because the alphabet matches. Familiar letters do not pay your rent. Revenue per user does, and Japan leads the world on that number. Our localization strategy guide orders later waves the same way: fund what pays, then expand.

  • Gather hiragana plus katakana variants for every core term; add kanji where titles in your category use it.
  • Write commas with no spaces and drop duplicates across title, subtitle, and keywords.
  • Favor terms rival Japanese titles repeat; those repeats are validated demand.
  • Leave English out unless the top charts for your category show it.

One honest limit shapes this work. Free heuristics can surface candidate terms from your listing and rival titles, but they cannot show search volume per term the way paid ASO tools do. Our keywords-field guide covers the field mechanics in full, and our cost guide prices the research step so you know what each added hour buys. Collect thirty candidates, keep the best mix that fits one hundred characters, and ship. You can refine after indexing tells you which terms moved.

Screenshots that sell in Japan

Japanese shoppers can write the same word three ways, and your keyword field must cover the ways that matter. Hiragana is the native script, katakana covers foreign and tech terms, and kanji carries compact meaning in titles. A habit tracker might be searched in hiragana by one shopper, in katakana by the next, and by its kanji compound in a title tap. Translate your English keyword field word for word and you will miss two of the three doors shoppers walk through.

Two objections come up at this point and both lose on the numbers. The first is that Japan feels hard because of the script. The script looks foreign until you see the routine: one section below turns hiragana, katakana, and kanji into packing steps you can follow without reading Japanese. The second is that Europe feels safer because the alphabet matches. Familiar letters do not pay your rent. Revenue per user does, and Japan leads the world on that number. Our localization strategy guide orders later waves the same way: fund what pays, then expand.

  • Every visible string in Japanese, set in a font with full CJK coverage.
  • At least one frame with a local-feeling face or scene, not imported stock.
  • Proof frames (results, streaks, ratings) ahead of promise frames.

One honest limit shapes this work. Free heuristics can surface candidate terms from your listing and rival titles, but they cannot show search volume per term the way paid ASO tools do. Our keywords-field guide covers the field mechanics in full, and our cost guide prices the research step so you know what each added hour buys. Collect thirty candidates, keep the best mix that fits one hundred characters, and ship. You can refine after indexing tells you which terms moved.

Adding the Japan locale in App Store Connect

Japanese shoppers can write the same word three ways, and your keyword field must cover the ways that matter. Hiragana is the native script, katakana covers foreign and tech terms, and kanji carries compact meaning in titles. A habit tracker might be searched in hiragana by one shopper, in katakana by the next, and by its kanji compound in a title tap. Translate your English keyword field word for word and you will miss two of the three doors shoppers walk through.

  1. Open App Store Connect, pick your app, and add Japanese (ja) under the localization list for the version.
  2. Fill the title (30 characters), subtitle (30 characters), and keyword field (100 characters) from your packed Japanese set.
  3. Paste the Japanese description and promotional text, then upload the Japanese screenshot set for each device size you support.
  4. Sweep every locale before submitting: titles inside caps, screenshots matching their language, no English frame hiding in the Japanese set.
  5. Submit and expect 24 to 48 hours for metadata review; one flagged locale holds the whole version, so the sweep in step four is the schedule.

Two objections come up at this point and both lose on the numbers. The first is that Japan feels hard because of the script. The script looks foreign until you see the routine: one section below turns hiragana, katakana, and kanji into packing steps you can follow without reading Japanese. The second is that Europe feels safer because the alphabet matches. Familiar letters do not pay your rent. Revenue per user does, and Japan leads the world on that number. Our localization strategy guide orders later waves the same way: fund what pays, then expand.

How App Store Localizer handles the Japan pass

Japanese shoppers can write the same word three ways, and your keyword field must cover the ways that matter. Hiragana is the native script, katakana covers foreign and tech terms, and kanji carries compact meaning in titles. A habit tracker might be searched in hiragana by one shopper, in katakana by the next, and by its kanji compound in a title tap. Translate your English keyword field word for word and you will miss two of the three doors shoppers walk through.

Two objections come up at this point and both lose on the numbers. The first is that Japan feels hard because of the script. The script looks foreign until you see the routine: one section below turns hiragana, katakana, and kanji into packing steps you can follow without reading Japanese. The second is that Europe feels safer because the alphabet matches. Familiar letters do not pay your rent. Revenue per user does, and Japan leads the world on that number. Our localization strategy guide orders later waves the same way: fund what pays, then expand.

Frequently asked questions

  • Why should Japan come before Germany or Korea for an indie app? Japan pairs the highest average revenue per user in mobile with a large iPhone base and fewer indie competitors shipping real Japanese listings. One deep Japan pass typically buys more downloads per hour than the same hours spread across European locales. Win Japan first, then fund Korea or Germany from the result. - Do Japanese shoppers search in hiragana, katakana, or kanji? All three, depending on the shopper and the term. Tech and loanwords skew katakana, native terms skew hiragana, and titles often use kanji compounds. Cover each core term in every script shoppers use, pack the field comma separated with no spaces, and never repeat words from your title or subtitle. - Are translated screenshots required, or is Japanese metadata enough? Screenshots are required for the win. Shoppers see art first, and English captions under a Japanese title read as unfinished. Translate every visible string, check CJK font fallback, add a local-feeling scene, and export both device sizes. Metadata without screenshots converts at a fraction of the full set. - How long before my Japan localization shows results? Plan one afternoon of active work, one to three days for App Review, two quiet weeks before reading ranks, and six to ten weeks before judging downloads. Change nothing in the first two weeks after launch. Early edits restart the indexing you just paid waiting time for.

Paste your App Store URL at https://asolocalization.com today and draft the whole Japan pass (Japanese metadata plus Japanese screenshots) in one afternoon. Then give Japan its due: a native-speaker review before submission, two quiet weeks for indexing, and eight honest weeks before the verdict. The market that pays most per user rewards the teams that treat it first, not fifth.

Paste your App Store URL at https://asolocalization.com today and draft the whole Japan pass (Japanese metadata plus Japanese screenshots) in one afternoon. Then give Japan its due: a native-speaker review before submission, two quiet weeks for indexing, and eight honest weeks before the verdict. The market that pays most per user rewards the teams that treat it first, not fifth.