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June 16, 2016
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unique visitor ID in mobile app

  • June 16, 2016
  • 12 replies
  • 10753 views

Hello,

recently I saw the following information about setting the unique ID for unique visitors in mobile apps.

"The SDK generates a unique visitor ID when an app is installed. This app visitor ID is stored within persistent memory on the mobile device and is sent with every hit. The app visitor ID is removed only when the user uninstalls the app (app visitor IDs persist through upgrades)."

source: https://marketing.adobe.com/resources/help/en_US/mobile/ios/hybrid_app.html

I try to figure out, whether when user clear app cache or data, visitor ID remains unchanged? I am curious because in our mobile application we register a suspicious number of new unique visitors...

Thank you in advance for your help.

Best,

Adrian

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Best answer by SteveBe8

@Adrian, @Tanmay - 

It is accurate that a delete and reinstall of the app will cause a new visitor to be generated.  

I need to clarify that while clearing app cache will not cause a new Visitor ID to be created, clearing app data will result in a new Visitor ID being created.  Also worth noting that the SDK uses no information about the device when generating the Visitor ID.

Sorry for the confusion.  Hope this helps.

 

steve benedick

sr mobile software engineer

12 replies

June 20, 2016

Thank you Tanmay.

So I can assume that a new app unique vistor is registered only when application is reinstall, right?

Best,

Adrian

TanmayMathur
Employee
June 17, 2016

Hi Adrian,

Yes, the uinque ID will remain unchanged when a user clears app cache or data. The ID is a combination of Device ID and identifier from SDK. Let me know if thats helpful. Thanks!

Tanmay