Okuzeka
Mobile App Development vocabulary · Testing, Crashes and Performance

ANR

Meaning in mobile app development, with examples

abbreviationAdvanced term

In mobile app development, ANR means: Application Not Responding: an Android error shown when an app's main thread is blocked for too long, for example about five seconds without responding to a touch.

In Turkish: uygulama yanıt vermiyor hatası, ANR

How it is used

Users see a dialog that lets them wait or close the app. Teams follow the ANR rate in Google Play vitals, because a high rate can reduce an app's visibility in the store. The usual fix is to move slow work off the main thread.

Example sentences

  1. We get ANRs on cheap phones when the app parses a big JSON file at startup.

  2. Our ANR rate in Play vitals is above the bad behavior threshold.

Common collocations

  • ANR rate
  • get an ANR
  • ANR dialog
  • Android vitals
  • main threadThe thread on which an app draws its interface and handles user input; if slow work runs there, the app freezes and stops responding.
  • crashA sudden failure that makes an app close unexpectedly, usually because of an error in the code that the app could not handle.
  • crash-free rateThe percentage of users or sessions that did not experience a crash in a given period; a key measure of an app's stability.
  • AndroidGoogle's mobile operating system, used by many phone makers such as Samsung, Xiaomi and Google itself. Its apps are mainly written in Kotlin or Java.

This word in other fields

The same English word can have a different meaning in another field:

More terms: Testing, Crashes and Performance

Practise with graded reading

Reading at the right level is the fastest way to make new words stick. Pick free English books by level: