Quality of Experience Index (Beta)

The percentage of non-impacted minutes.

Updated 2026-07-23 quality-of-experience-index

Quality of Experience Index (Beta)

The percentage of non-impacted minutes.

A minute is considered as non-impacted minute when the minute meets all of the conditions:

  • Meet the five thresholds including App Crash, ANR, Screen Load Time, App Startup Time, and Page Load Time.
  • No bad events occur during the minute

The percentage metric is calculated by dividing the number of non-impacted minutes by the number of active minutes.

Secondary Metrics

Active Devices

Supported Sensors

  • Android
  • iOS/tvOS
  • JS

For the full VSI App metrics catalog, see Metrics.