List My Apps for Android is one of those apps that fills a very niche purpose, but if you happen to need the functionality it provides, it is a godsend.
As the name suggests, the app simply outputs a list of all apps installed on your Android device in plain text, HTML, Markdown, etc.
I assume most people use this to share app list with friends, family or associates. I use this app every time I’m getting close to changing phones–with 568 apps on my phone and a lot of customizations surrounding those apps, I use it as the first part of generating a checklist of everything I need to do to get a new phone up and running like my old one.