No USB or adb necessary. This application is based on aLogcat it works only on devices running Android 4. 1 and higher. If you have ROOT access full system logs are shown, otherwise only this applications logs are shown. This is due to android limitation starting from Android 4. 1 Features: 100% Free, no Ads. Open Source.
Get the installation package of [ROOT] aLogcat 1.0.3 for free and check out users' reviews on Droid Informer. The app works flawlessly on Android 4.1 and above. This application is completely secure for downloading. SkyNet Software is the official developer of [ROOT] aLogcat which can be found in the Tools category.