🌍 App Store ASO Localizer (The Global App Publisher)

Breaking language barriers for app developers—reach billions of users worldwide with professionally localized app metadata.

📖 What is this?

The App Store ASO Localizer is an AI-powered Apify Actor designed to help app developers and marketers expand their global reach by automatically translating and optimizing app store metadata (titles, descriptions, keywords) into multiple languages.

It takes your Android app's Google Play Store URL or manual metadata and returns professionally localized content that fits within App Store character limits—all while preserving SEO value and marketing appeal.

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🌟 Key Features

• 🧠 Powered by Lingo.dev AI:

  • High-quality, context-aware translations
  • Preserves marketing tone and SEO keywords
  • Supports 100+ languages

• 🎯 Context-Aware Translation:

  • Specify app category, target audience, and tone
  • Improves translation quality and cultural relevance

• 🛡️ Fault Tolerant Design:

  • Robust error handling and retry logic
  • Detailed status reporting for each language
  • Continues processing even if one language fails

• 🚀 Multi-Language Support:

  • Process multiple target languages in a single run
  • Default support for Japanese, French, Spanish, German, and more

• 📏 Smart Character Limit Validation:

  • App Title: Max 30 characters (App Store)
  • Subtitle: Max 80 characters
  • Auto-fixes text that exceeds limits with AI-powered shortening
  • Retries up to 2 times to fit constraints

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🚀 How It Works

1. Input: Provide your Google Play Store URL or manual app metadata
2. Scraping/Loading: Actor fetches app title, subtitle, and description
3. Translation: Lingo.dev translates content into target languages
4. Validation: Checks character limits and auto-fixes if needed
5. Output: Returns structured JSON with all translations and validation status

Google Play URL → Scrape Metadata → Translate (Lingo.dev) → Validate Limits → Localized Output

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🛠️ Input Parameters

Field	Type	Description	Default
lingoApiKey	string	Your Lingo.dev API Key. If not provided, automatically uses mock mode	Optional
googlePlayUrl	string	Google Play Store URL (Mode A: Scrape)	-
manualData	object	Manual app metadata (Mode B: Manual Input)	-
targetLanguages	array	List of ISO 639-1 language codes (e.g., ["ja", "fr", "es"])	["ja"]
appContext	object	Contextual info: category, audience, tone	See below

• ✅ With API key: Uses real Lingo.dev translations

App Context Object:

{
  "category": "Utilities",
  "audience": "General User",
  "tone": "Professional"
}

🌐 Supported Languages:

Language	ISO 639-1 Code
English	en
Spanish	es
French	fr
German	de
Japanese	ja
Korean	ko
Chinese (Simplified)	zh
Portuguese	pt
Arabic	ar
Hindi	hi
Russian	ru
Italian	it

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👷🏻‍♂️ How to Use?

Step 1: Get Your API Key

1. Visit Lingo.dev
2. Sign up / Sign in
3. Navigate to Developer Dashboard
4. Copy your API Key

Step 2: Configure Input

Option A - Scrape from Google Play:

{
  "lingoApiKey": "your-lingo-api-key",
  "googlePlayUrl": "https://play.google.com/store/apps/details?id=com.google.android.calculator",
  "targetLanguages": ["ja", "fr", "es"],
  "appContext": {
    "category": "Utilities",
    "audience": "General User",
    "tone": "Professional"
  }
}

Option B - Manual Input:

{
  "lingoApiKey": "your-lingo-api-key",
  "manualData": {
    "title": "My Awesome App",
    "subtitle": "The best productivity tool",
    "description": "A comprehensive productivity app that helps you manage tasks, track time, and collaborate with your team."
  },
  "targetLanguages": ["ja", "ko"],
  "appContext": {
    "category": "Productivity",
    "audience": "Professionals",
    "tone": "Casual"
  }
}

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📊 Sample Output (JSON)

Here's an example output for a Calculator app translated to Japanese:

{
  "language": "ja",
  "original_title": "Calculator",
  "original_subtitle": "A simple calculator utility for Android",
  "original_description": "Perform basic and advanced calculations with ease...",
  "translated_title": "電卓",
  "title_length_status": "✅ Valid (2/30)",
  "title_attempts": 1,
  "translated_subtitle": "Android用のシンプルな電卓ユーティリティ",
  "subtitle_length_status": "✅ Valid (23/80)",
  "subtitle_attempts": 1,
  "translated_description": "基本的な計算から高度な計算まで、簡単に実行できます...",
  "description_status": "✅ Translated"
}

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🎯 Use Cases

1. Global App Launch: Translate your app metadata into 20+ languages before launch
2. ASO Optimization: Improve app discoverability in international markets
3. A/B Testing: Generate multiple translation variants for testing
4. Competitive Analysis: Analyze how competitors localize their apps
5. Localization Quality Check: Validate existing translations against character limits

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💡 Best Practices

• ✅ Use generic app descriptions for better translation quality
• ✅ Provide context (category, audience, tone) for more accurate results
• ✅ Review translations for cultural appropriateness
• ✅ Test with mock mode first to verify workflow
• ⚠️ Some languages (e.g., Chinese, Japanese) may require fewer characters
• ⚠️ Always consult native speakers for final review

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⚠️ Limitations

• Character limits are based on iOS App Store guidelines (30 for title, 80 for subtitle)
• Translation quality depends on source text clarity and context
• Some languages may naturally expand or contract text length
• The actor does not replace human translators for nuanced content

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📖 Documentation & Resources

• Lingo.dev Documentation
• Apify SDK Documentation
• App Store Character Limits
• Google Play Store Guidelines
• Join Apify Discord Community

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🤝 Contributing

Found a bug or want to add a feature? Contributions are welcome!

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Made with ❤️ by the Apify community