How to use My Device ID by Appsflyer to find my device ID?

【Android user】: 

search "My Device ID by Appsflyer" in Google Play store.  Open the application and copy the code under Google Advertising ID.

【IOS user】:
1.  https://itunes.apple.com/cn/app/id1192323960?mt=8  open this link in your Safari browser or search "My Device ID by Appsflyer" in App Store. 

2. Before open your application, please make sure the Limit Ad Tracking setting is closed.
You can check it in Settings → Private → Advertising

3. Open the application and copy the code under Advertising Identifier (IDFA)