Learn · Metrics
App store metrics, defined.
Apple's and Google's own definitions for the numbers in App Store Connect and Android vitals, how each is calculated, and the mistake people most often make with it. Most App Store metrics appear once you have at least five first-time downloads.
App Store Connect
- Impressions
- The number of times your app was viewed on the Today, Games, Apps and Search tabs of the App Store for more than one second. Includes product page views. Impressions (Unique Devices) counts each device once.
- Product page views
- The total number of times your App Store product page was viewed, including when apps load it with StoreKit. Product Page Views (Unique Devices) counts each device once.
- Conversion rate
- Total downloads and pre-orders divided by unique device impressions. A pre-order counts once, when it's made, not again when it downloads.
- First-time downloads
- The number of first-time downloads on devices with iOS, macOS, tvOS or visionOS. Total Downloads is first-time downloads plus redownloads.
- Redownloads
- The total number of redownloads of your app. Counted when a customer taps the redownload button; doesn't include auto-updates or device restores.
- Source types
- App Analytics attributes impressions, downloads and later activity to source types including App Store Search, App Store Browse, app referrers, web referrers and campaigns.
- Search vs Browse
- App Store Search covers views and downloads from search results, including search ads. App Store Browse covers discovery elsewhere in the store, such as the Today, Games and Apps tabs.
- Proceeds vs sales
- Sales is the total billed to customers for apps, bundles and in-app purchases (including tax only when it's part of the price). Proceeds is the estimated amount you'll receive: the customer price minus applicable taxes and Apple's commission.
Google Play: Android vitals
- User-perceived crash rate
- The share of daily active users who saw a crash while using the app. Google Play's bad behavior threshold is 1.09% overall and 8% on any single phone model (4% per watch model), measured over the last 28 days.
- User-perceived ANR rate
- The share of daily active users who saw an "App not responding" error while using the app. Google Play's bad behavior threshold is 0.47% overall and 8% on any single phone model (5% per watch model), measured over the last 28 days.