Allmon was created in the early days of ACID and Limey Linux. It was designed to run separately from AllStar nodes. In fact the first version was so CPU intensive it would kill a node. Allmon2 fixed that and people started putting it on their nodes. Shortly thereafter Allmon2 was distributed with DIAL and later with hamvoip, both with my permission (not that it was required but it was nice of them to ask).
Later Supermon came along. It's basically a copy of Allmon2 with shortcuts and external links. It appears the hamvoip folks have now adopted Supermon as the preferred Allmon like tool. Of course I prefer Allmon as it does exactly what I need it to do. I'm currently running a number of Allmon sites the main one being at
https://wd6awp.net/allmon/