Is there a list of all the sites (apps) that are under mp?

I think you can directly go to their site to get this kind of information. https://www.moneypot.com/apps

That page only shows the featured apps. To get a list of all apps, you could go from https://www.moneypot.com/apps/1, https://www.moneypot.com/apps/2, https://www.moneypot.com/apps/3 all the way through, but most of the apps are not working indeed.