Launch Your App in Japan
Make Your App Feel Native to Japanese Users
Turn awkward machine translations into natural, high-converting Japanese store text. Written by a professional Japanese content writer — 100% focused on your store page copy.
Why Launch in Japan? (A $10B+ Market)
Japan is the world's #3 mobile app economy with industry-leading monetization. But without native copy, 85%+ of potential downloads are lost.
World's 3rd Largest App Economy
Behind only the US and China, Japanese users spend over $10 Billion annually on mobile apps and subscriptions.
Massive iPhone Market Share
Unlike most global markets, Japan is heavily iOS-dominated. Japanese iPhone users show exceptional willingness to pay for premium apps.
High Spending Power & Retention
Average revenue per user (ARPU) ranks among the highest globally. Japanese users have high loyalty and lower churn rates once committed.
The 'Language Moat' Advantage
Over 85% of Japanese users skip English-only or machine-translated apps. Professional localization instantly gives you a dominant edge over competitors.
Why Japan? The #3 App Market in the World
Japan is one of the highest-spending app economies globally, yet most foreign apps fail to convert due to poor translation.
App Store Consumer Spend
Japan consistently ranks as the #3 largest app economy worldwide, behind only the US and China.
High Spending Power (ARPPU)
Japanese users have exceptional loyalty and high willingness to pay for well-crafted productivity apps.
Massive Language Barrier
Over 90% of Japanese users abandon apps that aren't natively localized. High quality copywriting turns this barrier into your unfair advantage.
Why Machine Translation Hurts Conversions in Japan
Japanese communication relies heavily on subtle emotional nuances and reassuring tone. Literal translations sound cold, assertive, and robotic, immediately triggering doubt.
Japan has one of the highest English anxiety levels among developed economies. When an app speaks natural, comforting Japanese, it instantly wins deep consumer trust.
Anyone can run Google Translate, but fixing broken text line-breaks and adjusting cultural nuance requires a native specialist. That is where Japan Launch steps in.
Real Copy Problems, Rebuilt as Clear Examples
These examples are based on public websites and App Store listings. Product names and screens have been changed; none are commissioned client work.
Anonymized UI rebuilt from public listings. Product names and screens are changed; these are not client results.
Remove Friction on the Upgrade Button
The user-facing goal is access to the features. This shorter option focuses on what the user can do next.
Localization Tips
Localization tip: Prefer the action users want to take over a literal description of the mechanism. Short Japanese button labels often feel clearer when they use familiar everyday verbs.
What Changed & Key Improvements
Why Choose Us?
Tailored specifically for indie developers and small teams launching in Japan.
Professional Writer
Written by a professional Japanese content writer. Not machine translation.
Fast Turnaround
App Store Listings within 2 business days; Landing Pages within 2–3 business days.
Easy Process
No spreadsheets or setup. Just send an App Store, Google Play, or LP URL.
AI-Assisted, Human-Perfected
AI assists initial drafting, but every sentence is polished by a human writer.
Indie Developer Friendly
Flat-rate pricing with zero corporate bloat or hidden fees.
How It Works
Getting high-converting Japanese copy is quick and effortless.
Send Your URL
Send your App Store, Google Play, or Landing Page URL.
We Review Content
We review your content & key selling points.
Native Localization
Natural Japanese localization by a Japanese content writer.
Receive Your Copy
Receive your localized copy in Google Docs or Word.
Paste & Publish
Paste it into your website or app store.
What You Need to Send
- App Store URL
- Google Play URL
- Landing Page URL
Simply paste your English text.
Delivery Method
Delivered in Google Docs or Word.
Formatted cleanly so you can directly copy & paste into App Store Connect, Google Play Console, or your CMS.
Please note: We deliver ready-to-use copy; we do not directly edit or update your live website or store account.
App Store & Google Play Listing Pack
The essential copywriting package for every app launching in Japan.
- App Title & Subtitle optimized for Japanese ASO search terms
- Short & Full Description to convert store visitors into downloads
- Release Notes / What's New for launch or version updates
- Delivered within 2 Business Days in Google Docs or Word
Need Website or Landing Page Copy Too?
Expand beyond the App Store — turn your web visitors into loyal Japanese customers:
Single-Page Marketing LP
Complete Japanese copywriting for your single-page marketing website (e.g. myapp.com). Crafted to convert Japanese visitors into active users.
- Hero section, 3–5 features, social proof & FAQ
- Ready-to-paste text (Docs/Markdown) + Free revisions
- Delivered within 2–3 business days
Full Website & Web App
For multi-page product websites and interactive SaaS/Web applications. Includes UI strings & i18n JSON support.
- Multi-page product website + Web app UI buttons & menus
- i18n JSON / YAML file support for developer integration
- Japanese SEO metadata & search keyword optimization
- Tailored proposal & custom quote within 24 hours
Frequently Asked Questions
Just send your App Store, Google Play, or landing page URL. If your app isn't public yet, simply paste your English description or pitch into the form. No complicated setup or spreadsheets required!
Both — AI speed combined with 100% human perfection. We use AI for rapid initial drafting and terminology research, and every single word is carefully rewritten, culturally adapted, and polished by a professional Japanese content writer.
No. We don't do literal word-for-word translation. We provide high-converting Japanese copywriting and ASO (App Store Optimization). We optimize your titles, keywords, and benefit-driven copy so Japanese users immediately understand why your app is worth downloading.
You'll receive ready-to-use Japanese copy in a clean Google Docs and Word file. You can simply copy and paste the text directly into App Store Connect, Google Play Console, or your website.
App Store & Google Play Listing Packs are delivered within 2 business days. Landing Page copywriting is delivered within 2–3 business days.
Free revisions are included with every order! If you want to tweak the tone, emphasize specific features, or refine keywords, we'll gladly polish the copy until you are 100% satisfied.