Detect iOS app crashes

What are Crashes in iOS and iPadOS apps?

Crashes in iOS and iPadOS apps refer to an unexpected termination of an app that results in the app stopping its execution abruptly. This can happen for a variety of reasons, such as encountering an unhandled exception, memory issues, or other unforeseen errors during runtime.

When an app crashes, the user is typically presented with a message that indicates the app has stopped working, and the user may be given the option to either force stop the app or send a crash report to the app's developer. Crashes negatively impact the user experience and can lead to loss of data or progress in the app.

Reasons for Crashes in iOS and iPadOS apps

• Mach Exceptions: These are low-level exceptions that occur when a process attempts to execute an illegal or unsupported operation. Mach exceptions can result from issues such as attempting to access protected memory, divide by zero errors, or other hardware-level problems.
• Signals: Signals are software interrupts that are sent to a process when it encounters a critical error. iOS and iPadOS SDKs can detect and report signals such as SIGSEGV (segmentation violation), SIGBUS (bus error), and SIGABRT (abort signal). These signals are often triggered by memory access issues or other programming errors.
• Objective-C Exceptions: Objective-C exceptions occur when an object sends a message to an invalid recipient or when an attempt is made to access an object that has been deallocated. iOS and iPadOS SDKs can detect and report Objective-C exceptions, which can result from programming errors or unexpected runtime conditions.
• NSException: NSException is a higher-level exception that can occur in Objective-C code. These exceptions are typically triggered by issues such as invalid method calls, unhandled errors, or other problems in the application's logic. iOS and iPadOS SDKs can detect and report NSException crashes, providing valuable information for developers to diagnose and fix the underlying issues.

How do we use the information in the screenshot to fix Crashes in iOS and iPadOS apps?

The issue report will contain the name and reason for the crash, along with the stack trace. The stack trace will help developers identify the root cause of the issue.