The all-in-one toolkit to grow your app globally. Localize your App Store and Google Play listings, optimize subscription pricing by country, and generate stunning screenshots — all connected directly to App Store Connect and Google Play Console.
🌐 Try it now: localizer.fayhe.com
Expanding your app internationally is painful:
- Translating metadata manually takes forever
- Pricing subscriptions fairly across 175 countries is guesswork
- Creating localized screenshots for every language is tedious
- Managing both iOS and Android stores doubles the work
App Store & Play Store Localizer solves all of this in one place.
Translate your entire App Store and Google Play listings to 40+ languages in minutes, not days.
- One-click translation of app name, subtitle, description, keywords, and what's new
- AI-powered with OpenAI or AWS Bedrock (Claude)
- Protected words to keep brand names untranslated
- Direct sync with App Store Connect and Google Play Console — no copy-paste needed
- Manage screenshots and graphics for both platforms
Stop leaving money on the table. Set fair prices based on each country's purchasing power.
- GDP-adjusted pricing recommendations for 40+ countries
- See current vs recommended prices at a glance
- One-click price updates directly to App Store Connect
- Automatic currency conversion and price point matching
Create professional App Store screenshots with device mockups in seconds.
- 2D and 3D device frames (iPhone, Android)
- Multi-language headlines with AI translation
- Custom backgrounds, shadows, and layouts
- Batch export all languages as ZIP
Just visit localizer.fayhe.com — no installation needed.
git clone https://github.com/fayharinn/iOS-App-Distribution-Localizer.git
cd iOS-App-Distribution-Localizer
npm install
npm run devYour credentials never leave your browser:
.p8private keys are encrypted locally with your password- JWT tokens are generated client-side
- No data is sent to any third-party server
- Open source — audit the code yourself
View App Store Connect authentication flow
┌─────────────────────────────────────────────────────────────────────────────┐
│ App Store Connect Auth Flow │
├─────────────────────────────────────────────────────────────────────────────┤
│ │
│ ┌──────────┐ password ┌──────────────┐ │
│ │ .p8 Key │ ──────────────► │ Encrypted │ ◄─── Stored in localStorage │
│ │ (file) │ encrypt │ .p8 Key │ (persistent) │
│ └────┬─────┘ └──────┬───────┘ │
│ │ │ │
│ │ sign │ password │
│ │ │ decrypt │
│ ▼ ▼ │
│ ┌──────────┐ ┌──────────────┐ │
│ │ JWT │ ◄───────────────│ Decrypted │ │
│ │ Token │ sign │ .p8 Key │ ◄─── In memory only │
│ └────┬─────┘ └──────────────┘ (cleared on reload) │
│ │ │
│ │ cache │
│ ▼ │
│ ┌──────────────┐ │
│ │ sessionStorage│ ◄─── JWT cached for ~19 min │
│ │ (JWT only) │ Auto-reconnect on page reload │
│ └──────┬───────┘ Timer shows remaining time │
│ │ │
│ │ Bearer token │
│ ▼ │
│ ┌──────────────┐ │
│ │ App Store │ │
│ │ Connect API │ │
│ └──────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────────────────┘
View Google Play Console authentication flow
┌─────────────────────────────────────────────────────────────────────────────┐
│ Google Play Console Auth Flow │
│ (OAuth2 JWT Bearer for Service Accounts) │
├─────────────────────────────────────────────────────────────────────────────┤
│ │
│ ┌────────────────┐ │
│ │ Service Account│ ◄─── JSON file from Google Cloud Console │
│ │ JSON File │ Contains: client_email, private_key │
│ └───────┬────────┘ │
│ │ │
│ │ parse & extract │
│ ▼ │
│ ┌────────────────┐ │
│ │ Private Key │ ◄─── RSA private key (RS256) │
│ │ + Client Email│ In memory only (not persisted) │
│ └───────┬────────┘ │
│ │ │
│ │ sign JWT claim │
│ ▼ │
│ ┌────────────────┐ JWT Payload: │
│ │ Signed JWT │ • iss: client_email │
│ │ Assertion │ • scope: androidpublisher │
│ └───────┬────────┘ • aud: oauth2.googleapis.com/token │
│ │ • iat/exp: timestamps │
│ │ │
│ │ POST to Google OAuth2 │
│ ▼ │
│ ┌────────────────┐ │
│ │ Google │ │
│ │ OAuth2 Token │ ◄─── https://oauth2.googleapis.com/token │
│ │ Endpoint │ grant_type: jwt-bearer │
│ └───────┬────────┘ │
│ │ │
│ │ returns access_token │
│ ▼ │
│ ┌────────────────┐ │
│ │ sessionStorage │ ◄─── Access token cached for ~1 hour │
│ │ (token + expiry)│ Auto-refresh when expired │
│ └───────┬────────┘ Timer shows remaining time │
│ │ │
│ │ Bearer token │
│ ▼ │
│ ┌────────────────┐ │
│ │ Google Play │ │
│ │ Developer API │ ◄─── androidpublisher/v3/applications/{packageName} │
│ └────────────────┘ │
│ │
│ ┌─────────────────────────────────────────────────────────────────────┐ │
│ │ Edit Session Workflow: │ │
│ │ │ │
│ │ Create Edit ──► Make Changes ──► Commit Edit │ │
│ │ │ │ │ │ │
│ │ │ │ └──► Changes go live │ │
│ │ │ │ │ │
│ │ │ └──► Update listings, upload images │ │
│ │ │ │ │
│ │ └──► Returns editId (required for all operations) │ │
│ │ │ │
│ │ Note: Uncommitted edits expire automatically │ │
│ └─────────────────────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────────────────┘
- Go to App Store Connect > API Keys
- Create a key with Admin or App Manager role
- Note your Key ID and Issuer ID
- Download the
.p8file - Enter credentials in the app sidebar
- Go to Google Cloud Console
- Create a service account in your project, with Google Play Developer API enabled
- Download the JSON key file
- In Play Console → Users and permissions → Invite new users
- Add the service account email (from the JSON file)
- Grant "Admin" or "Release manager" permission for your app
- Upload the JSON key in the app sidebar
Configure in the sidebar:
| Provider | API Key Format |
|---|---|
| OpenAI | sk-... |
| AWS Bedrock | ACCESS_KEY:SECRET_KEY |
- React 19 + Vite — Fast, modern frontend
- Tailwind CSS + shadcn/ui — Beautiful UI components
- Three.js — 3D device mockups
- jose — JWT signing for App Store Connect
The App Store Connect API doesn't support CORS. For production, deploy with Cloudflare:
# Deploy API proxy
wrangler deploy -c wrangler.proxy.jsonc
# Set proxy URL
echo "VITE_ASC_PROXY_URL=https://your-proxy.workers.dev" > .env.production
# Deploy site
npm run build
wrangler pages deploy distContributions welcome! Feel free to open issues or submit PRs.
GNU AGPLv3 — Free to use, modify, and distribute with attribution.
Screenshot generator based on appscreen by Stefan from yuzuhub.com
