Solve statistical noise under "App Store Installations and Deletions" report

Hello all,

I'm currently using Apple Connect API to retrieve download info from my app. Namely I'm using App Store Installations and Deletions under the Analytics Reports API, using an ONGOING request with daily granularity.

Unfortunately, the data received is not matching the data from apple store connect UI.

Recently I found this article, from apple help documentation for Analytics Reports API that states the following:

  1. "(..) Some usage reports are not generated if minimum thresholds are not met (...)"

and

  1. "(...) Additionally, a small amount of statistical noise is added to metrics, preventing the reverse-engineering of individual activity while preserving accuracy at scale."

I kindly ask if:

  • What is stated in 1. happens often within the report generated from App Store Installations and Deletions. If yes, do you have any idea of the percentage, so we take that into account when showing our metrics?

  • What is stated in 2. happens often within the report generated from App Store Installations and Deletions. If yes, how to handle the statistical noise? Discard events with the field "count" < 5, for instance?

Thank you very much,

HH

DOCs:

https://developer.apple.com/documentation/analytics-reports/app-installs

https://developer.apple.com/help/app-store-connect-analytics/overview/analytics-reports-api

https://developer.apple.com/documentation/analytics-reports

Solve statistical noise under "App Store Installations and Deletions" report
 
 
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