How to find App IDs?

App IDs are unique identifiers that allow Similarweb’s APIs to locate and return data for specific mobile applications. Every app on iOS and Android has a distinct identifier that serves as its “address” in our system.

Why you need App IDs

• Required for all app-related API calls and data requests
• Enable precise app targeting in competitive analysis
• Essential for tracking app performance and market intelligence

Quick reference

Method 1: Using Similarweb APIs (recommended)

App ID Search endpoint

The fastest way to find app IDs without consuming data credits.

Endpoint: GET https://api.similarweb.com/v1/app/{store}/find-app-name/

How it works: Returns app IDs related to your search term by matching against app ID, title, or author/developer name.

 

  curl "https://api.similarweb.com/v1/app//find-app-name/?term=whatsapp" \
  -H "api-key: YOUR_API_KEY"

Site Related Apps endpoint

Find mobile apps associated with websites in your analysis. This endpoint consumes credits.

Use case: You’re analyzing amazon.com and want to find their mobile apps.

Endpoint: /v1/website/{domain}/related-apps

 

  curl "https://api.similarweb.com/v1/website/amazon.com/related-apps" \
  -H "api-key: YOUR_API_KEY"

Method 2: Extract from app store URLs

Android (Google Play Store)

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

iOS (Apple App Store)

URL structure: https://apps.apple.com/app/id{NUMERIC_ID}

Method 3: Using the Similarweb platform