MAAS is described as 'Physical infrastructure management system, that turns a collection of servers into an on-demand physical cloud. It IP address manager, providing DHCP and DNS for IPv4 and IPv6, and a physical provisioner that uses PXE, IPMI or other vendor-specific protocols to' and is an app in the network & admin category. There are more than 10 alternatives to MAAS for a variety of platforms, including Linux, Self-Hosted, Web-based, Windows and Mac apps. The best MAAS alternative is DCImanager. It's not free, so if you're looking for a free alternative, you could try NetBox or phpIPAM. Other great apps like MAAS are Simple IP Config, SolarWinds IP Address Manager, NIPAP and TeemIP.
The disadvantage of Mass is that technical support service is provided on a commercial basis (and it is quite expensive).