We covered another similar app by the same developer a few years ago, but there’s a new name and a newer product out now called LiveBoot for root users that allows you to watch the logcat as you’re booting.
The log is displayed as it’s being updated during boot, and you can either simply display the log or you can display the log text over the boot animation in the pro version.
The application is geared to work with Android Lollipop, but should work with any 4.3+ Android ROM although the claims that the application will work are on the speculative side. Basically make a nandroid backup just in case something goes wrong with the install as the app contains the possibility of causing bootloops.
It’s the sort of application I wish were hardcoded into most ROM installers for at least the first boot, but that’s just root dreaming.
Although it does contain some pretty neat diagnostic information in real time, it’s probably most useful as a boot animation, or for knowing you’ve installed a kernel that is not playing particularly well with some aspect of the system.
LiveBoot is free for most features, but if you want to enable transparency where you can see the boot animation and diagnostic log information at the same time you can unlock pro mode in the application for $2.49.
Download: Google Play