How to read iOS crash logs

Application crashes are normal and happen all the time. When a published app crashes on a user's iOS device, Apple sends a crash log to the developer. This means that the developer should to be able to read and analyse the log in order to fix the bug. However, sometimes you may want to read the crash log yourself or the developer may need some information from the log to locate it, for example the incident_id.

How do I access the crash logs?

The logs can be accessed either from the iOS device itself or by syncing the data to PC or Mac with iTunes.

Accessing the crash logs on your iOS device

1. Open the Settings app.
2. Navigate to Privacy & Security > Analytics & Improvements > Analytics Data.
3. Look for the crash log you want to view and tap it open.
   • Tip: You can use the search function within the crash log view to find specific logs.

Accessing the crash logs using iTunes

1. Connect your iOS device to your PC or Mac and sync it with iTunes
2. Retrieve the crash logs
   • macOS
     1. Open Finder.
     2. Select Go in the menu bar nad select Go to Folder....
     3. Paste the following path: ~/Library/Logs/CrashReporter/MobileDevice/ and click Go.
     4. You’ll find all the crash logs synced from your device.
   • Windows 10 / Windows 11 (Windows Store version)
     1. Open File Explorer.
     2. Type %localappdata% and hit Enter.
     3. Navigate to Packages/AppleInc.iTunes_nzyj5cx40ttqa/LocalCache/Roaming/Apple Computer/Logs/CrashReporter/MobileDevice, and select your device.
     4. You'll find all the crash logs synced from your device.
   • Windows 10 / Windows 11
     1. Open File Explorer.
     2. Type %appdata% and hit Enter.
     3. Navigate to Apple computer/Logs/CrashReporter/MobileDevice, and select your device.
     4. You'll find all the crash logs synced from your device.