PLCrashReporter
Reliable, open-source crash reporting for iOS, macOS and tvOS
...The library detects crashes and generates reports to help your investigation and troubleshooting with the information of application, system, process, thread, etc. as well as stack traces. The easiest way to use PLCrashReporter is by using AppCenter. However, if you want to use PLCrashReporter directly, grab the latest release at the releases page. Crash reports are output as protobuf-encoded messages, and may be decoded using the CrashReporter library or any Google Protocol Buffers decoder. You can use Atos command-line tool to symbolicate the output.