Logcat is an app for reading logs without root access. It connects to the phone's local ADB server. It supports all devices that use Android OS.

ADB is a protocol that allows you to access and control your Android devices remotely.

You need to enable USB debugging on your phone. You can do it by going to Settings and enabling USB debugging. You need to make sure that your phone is connected to the Internet.

Logcat will show you all the messages that are in the logs. It's very easy to use. You can scroll down or up to read logs. You can also search through the logs.