Related Applications

Overview

The related_applications property allows you to specify native applications available on different platforms (App Store, Play Store, Microsoft Store, etc.). Combined with prefer_related_applications, browsers can suggest installing the native app instead of or alongside the PWA.

Use Cases:

You have both a PWA and native mobile apps
You want to promote the native app for better platform integration
You want users to discover all versions of your app
You need platform-specific features only available in native apps

Configuration

List related native apps without preferring them:

/config/packages/pwa.yaml

pwa:
    manifest:
        prefer_related_applications: false  # Don't prefer native apps
        related_applications:
            - platform: "play"
              url: "https://play.google.com/store/apps/details?id=com.example.app"
              id: "com.example.app"

Result: Browser shows PWA install prompt. Native apps listed as alternatives.

Prefer Native Applications

Suggest native apps over PWA installation:

/config/packages/pwa.yaml

pwa:
    manifest:
        prefer_related_applications: true  # Prefer native apps
        related_applications:
            - platform: "play"
              url: "https://play.google.com/store/apps/details?id=com.example.app"
              id: "com.example.app"
            - platform: "itunes"
              url: "https://apps.apple.com/app/example-app/id123456789"

Result: Browser suggests installing native app first, PWA as fallback.

Multiple Platforms

List apps for all major platforms:

/config/packages/pwa.yaml

pwa:
    manifest:
        prefer_related_applications: false
        related_applications:
            - platform: "play"
              url: "https://play.google.com/store/apps/details?id=com.example.app"
              id: "com.example.app"
            - platform: "itunes"
              url: "https://apps.apple.com/app/example-app/id123456789"
              id: "123456789"
            - platform: "windows"
              url: "https://apps.microsoft.com/store/detail/example-app/9NBLGGH4NNS1"
              id: "9NBLGGH4NNS1"
            - platform: "chrome_web_store"
              url: "https://chrome.google.com/webstore/detail/example-app/abcdefghijklmnopqrstu"
              id: "abcdefghijklmnopqrstu"

Properties

prefer_related_applications

Type: boolean Default: false

Controls whether browsers should suggest native apps over the PWA.

Value

Behavior

false

PWA is primary, native apps as alternatives

true

Native apps preferred, PWA as fallback

When to use true:

Native app provides significantly better experience
Platform-specific features are critical
Native app is your primary product
PWA is mainly for web compatibility

When to use false (default):

PWA is your primary product
Want maximum reach across all platforms
Native app is optional enhancement
PWA feature parity with native apps

platform

Type: string (required)

Identifier for the app platform.

Supported Platforms

play (Google Play Store)

For: Android devices

/config/packages/pwa.yaml

related_applications:
    - platform: "play"
      url: "https://play.google.com/store/apps/details?id=com.example.myapp"
      id: "com.example.myapp"

URL Format: https://play.google.com/store/apps/details?id={package_name}

ID Format: Java package name (e.g., com.company.app)

Finding your package name:

Open Play Console
Go to your app
Check "Package name" field
Or find in build.gradle: applicationId "com.example.app"

itunes (Apple App Store)

For: iOS, iPadOS devices

/config/packages/pwa.yaml

related_applications:
    - platform: "itunes"
      url: "https://apps.apple.com/app/example-app/id123456789"
      id: "123456789"

URL Format: https://apps.apple.com/app/{app-name}/id{app_id}

ID Format: Numeric App ID (e.g., 123456789)

Finding your App ID:

Open App Store Connect
Go to your app
Check "Apple ID" field
Or find in App Store URL after /id

windows (Microsoft Store)

For: Windows 10/11 devices

/config/packages/pwa.yaml

related_applications:
    - platform: "windows"
      url: "https://apps.microsoft.com/store/detail/9NBLGGH4NNS1"
      id: "9NBLGGH4NNS1"

URL Format: https://apps.microsoft.com/store/detail/{store_id}

ID Format: Store ID starting with 9 (e.g., 9NBLGGH4NNS1)

Finding your Store ID:

Open Partner Center
Go to your app
Check "Store ID" field
Or find in Microsoft Store URL

chrome_web_store (Chrome Web Store)

For: Chrome Extensions/Apps

/config/packages/pwa.yaml

related_applications:
    - platform: "chrome_web_store"
      url: "https://chrome.google.com/webstore/detail/abcdefghijklmnopqrst"
      id: "abcdefghijklmnopqrst"

URL Format: https://chrome.google.com/webstore/detail/{extension_id}

ID Format: 32-character extension ID

Finding your Extension ID:

Open Chrome Web Store Developer Dashboard
Go to your extension
Check "Item ID" field
Or find in extension URL

chromeos_play (Chrome OS Play Store)

For: Chrome OS devices with Play Store support

/config/packages/pwa.yaml

related_applications:
    - platform: "chromeos_play"
      url: "https://play.google.com/store/apps/details?id=com.example.app"
      id: "com.example.app"

Format: Same as Google Play Store

webapp (Web Apps)

For: Generic web applications

/config/packages/pwa.yaml

related_applications:
    - platform: "webapp"
      url: "https://app.example.com/install"

URL Format: Any URL to your web app

f-droid (F-Droid)

For: Android open-source app repository

/config/packages/pwa.yaml

related_applications:
    - platform: "f-droid"
      url: "https://f-droid.org/packages/com.example.app"
      id: "com.example.app"

URL Format: https://f-droid.org/packages/{package_name}

amazon (Amazon Appstore)

For: Amazon Fire devices, Android

/config/packages/pwa.yaml

related_applications:
    - platform: "amazon"
      url: "https://www.amazon.com/dp/B0123456789"
      id: "B0123456789"

URL Format: https://www.amazon.com/dp/{asin}

ID Format: ASIN (Amazon Standard Identification Number)

Complete Examples

PWA primary, native apps as enhancements:

/config/packages/pwa.yaml

pwa:
    manifest:
        name: "SocialApp"
        description: "Connect with friends"
        prefer_related_applications: false  # PWA is primary
        related_applications:
            # Android native app
            - platform: "play"
              url: "https://play.google.com/store/apps/details?id=com.socialapp"
              id: "com.socialapp"

            # iOS native app
            - platform: "itunes"
              url: "https://apps.apple.com/app/socialapp/id987654321"
              id: "987654321"

Example 2: Game

Native apps preferred for performance:

/config/packages/pwa.yaml

pwa:
    manifest:
        name: "Epic Game"
        description: "Play the best game ever"
        prefer_related_applications: true  # Prefer native for performance
        related_applications:
            - platform: "play"
              url: "https://play.google.com/store/apps/details?id=com.epic.game"
              id: "com.epic.game"

            - platform: "itunes"
              url: "https://apps.apple.com/app/epic-game/id111222333"
              id: "111222333"

            - platform: "windows"
              url: "https://apps.microsoft.com/store/detail/9NBLGGH4GAME"
              id: "9NBLGGH4GAME"

Example 3: Productivity Tool

Available on all platforms:

/config/packages/pwa.yaml

pwa:
    manifest:
        name: "TaskMaster Pro"
        prefer_related_applications: false
        related_applications:
            - platform: "play"
              url: "https://play.google.com/store/apps/details?id=com.taskmaster.pro"
              id: "com.taskmaster.pro"

            - platform: "itunes"
              url: "https://apps.apple.com/app/taskmaster-pro/id555666777"
              id: "555666777"

            - platform: "windows"
              url: "https://apps.microsoft.com/store/detail/9TASKMASTER123"
              id: "9TASKMASTER123"

            - platform: "chrome_web_store"
              url: "https://chrome.google.com/webstore/detail/taskmaster/abcdefghijkl"
              id: "abcdefghijkl"

            - platform: "f-droid"
              url: "https://f-droid.org/packages/com.taskmaster.pro"
              id: "com.taskmaster.pro"

Example 4: PWA-Only with Web App Link

No native apps, just PWA:

/config/packages/pwa.yaml

pwa:
    manifest:
        name: "Web-Only App"
        prefer_related_applications: false
        related_applications:
            - platform: "webapp"
              url: "https://webapp.example.com"

Browser Support

Browser

Support

Behavior

Chrome (Android)

✅

May show native app banner if prefer=true

Chrome (Desktop)

⚠️

Limited support

Edge

⚠️

Limited support

Safari

❌

Ignored

Firefox

❌

Ignored

Graceful Degradation: Browsers that don't support this feature simply ignore it and show standard PWA install prompts.

User Experience Flow

When prefer_related_applications = false

User visits PWA
    ↓
Browser shows: "Add to Home Screen" (PWA)
    ↓
User installs PWA
    ↓
[Optional] "Also available on Google Play" link shown

When prefer_related_applications = true

User visits PWA (on Android)
    ↓
Browser checks: Native app available on Play Store?
    ↓
Yes: Shows "Get the app" banner → Play Store
    ↓
No: Falls back to "Add to Home Screen" (PWA)

Testing

1. Check Manifest

JavaScript Console

fetch('/manifest.json')
    .then(r => r.json())
    .then(manifest => {
        console.log('Prefer native:', manifest.prefer_related_applications);
        console.log('Related apps:', manifest.related_applications);

        manifest.related_applications?.forEach(app => {
            console.log(`Platform: ${app.platform}`);
            console.log(`URL: ${app.url}`);
            console.log(`ID: ${app.id}`);
        });
    });

2. Test on Android Chrome

1. Visit your PWA on Android Chrome
2. If prefer_related_applications = true:
   - Look for native app install banner
   - Banner should link to Play Store
3. If prefer_related_applications = false:
   - Look for PWA install prompt
   - Native app may be mentioned as alternative

3. Verify Store Links

# Test each URL
- ✓ Play Store URL opens correct app
- ✓ App Store URL opens correct app
- ✓ Microsoft Store URL opens correct app
- ✓ Chrome Web Store URL opens correct extension
- ✓ All IDs match actual apps

4. DevTools Inspection

1. Open DevTools (F12)
2. Go to Application → Manifest
3. Check "Related Applications" section
4. Verify:
   - prefer_related_applications value
   - All platforms listed
   - URLs are correct
   - IDs match

Best Practices

1. Keep URLs Updated

# ✓ Good - URLs point to active apps
related_applications:
    - platform: "play"
      url: "https://play.google.com/store/apps/details?id=com.active.app"

# ✗ Bad - URL points to removed app
related_applications:
    - platform: "play"
      url: "https://play.google.com/store/apps/details?id=com.old.removed.app"

2. Include App IDs

# ✓ Good - includes ID for better matching
- platform: "play"
  url: "https://play.google.com/store/apps/details?id=com.example.app"
  id: "com.example.app"

# ⚠️ Acceptable but less ideal
- platform: "play"
  url: "https://play.google.com/store/apps/details?id=com.example.app"

3. List Active Platforms Only

# ✓ Good - only lists platforms where app exists
related_applications:
    - platform: "play"
      url: "..."

# ✗ Bad - lists platforms without apps
related_applications:
    - platform: "play"
      url: "..."
    - platform: "itunes"
      url: "..."  # But iOS app doesn't exist!

4. Use prefer_related_applications Sparingly

# Default (recommended for most PWAs)
prefer_related_applications: false

# Only use true if native app is significantly better
prefer_related_applications: true

5. Provide Fallback

Always ensure your PWA works standalone, even when preferring native apps.

Decision Tree

Should you prefer native applications?

Does your native app provide significantly better UX?
├─ Yes → Does it have features PWA can't offer?
│         ├─ Yes → prefer_related_applications: true
│         └─ No → prefer_related_applications: false
└─ No → prefer_related_applications: false

Do you want maximum reach?
└─ Yes → prefer_related_applications: false (PWA primary)

Is installation friction a concern?
└─ Yes → prefer_related_applications: false (PWA easier to install)

Common Mistakes

1. Wrong ID Format

Problem:

- platform: "play"
  id: "https://play.google.com/..."  # Wrong! ID is not a URL

Solution:

- platform: "play"
  id: "com.example.app"  # Correct: package name

2. Missing Platform

Problem:

related_applications:
    - url: "https://play.google.com/..."  # Missing platform!

Solution:

related_applications:
    - platform: "play"  # Required!
      url: "https://play.google.com/..."

Problem:

prefer_related_applications: true
# But no related_applications listed!

Solution:

prefer_related_applications: true
related_applications:
    - platform: "play"
      url: "..."  # Must provide apps to prefer

4. Outdated URLs

Problem: URLs point to removed or renamed apps

Solution: Regularly verify all store URLs still work

Troubleshooting

Native App Banner Not Showing

Problem: Expected native app banner doesn't appear

Checklist:

✓ prefer_related_applications: true is set
✓ Testing on supported browser (Chrome Android)
✓ App actually exists on specified platform
✓ URL and ID are correct
✓ App is published (not draft)
✓ PWA manifest is valid

Wrong App Suggested

Problem: Browser suggests wrong native app

Solutions:

Verify id matches the actual app
Check platform is correct
Ensure URL points to correct store listing
Clear browser cache and try again

PWA Install Blocked

Problem: Users can't install PWA when prefer=true

Solutions:

Set prefer_related_applications: false
Or ensure native app is available
Provide manual "Install PWA" link in your app

PWA Manifest - Complete manifest configuration
Installation - PWA installation guide

Resources

MDN related_applications: https://developer.mozilla.org/en-US/docs/Web/Manifest/related_applications
Web.dev: https://web.dev/add-manifest/#related_applications
W3C Spec: https://w3c.github.io/manifest/#related_applications-member

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Overview

Configuration

Basic Related Applications

Prefer Native Applications

Multiple Platforms

Properties

prefer_related_applications

platform

Supported Platforms

play (Google Play Store)

itunes (Apple App Store)

windows (Microsoft Store)

chrome_web_store (Chrome Web Store)

chromeos_play (Chrome OS Play Store)

webapp (Web Apps)

f-droid (F-Droid)

amazon (Amazon Appstore)

Complete Examples

Example 1: Social Media App

Example 2: Game

Example 3: Productivity Tool

Example 4: PWA-Only with Web App Link

Browser Support

User Experience Flow

When prefer_related_applications = false

When prefer_related_applications = true

Testing

1. Check Manifest

2. Test on Android Chrome

3. Verify Store Links

4. DevTools Inspection

Best Practices

1. Keep URLs Updated

2. Include App IDs

3. List Active Platforms Only

4. Use prefer_related_applications Sparingly

5. Provide Fallback

Decision Tree

Common Mistakes

1. Wrong ID Format

2. Missing Platform

3. Prefer Without Related Apps

4. Outdated URLs

Troubleshooting

Native App Banner Not Showing

Wrong App Suggested

PWA Install Blocked

Related Documentation

Resources