Amazon VPC IP Address Manager vs RackTables

Amazon VPC IP Address Manager has no write-up on Specifiction yet; its figures are above.

RackTables is a free, web-based datacenter asset management system for documenting equipment, network addresses, rack space, and network configuration. It tracks devices, racks, and enclosures, and lets users mount devices in racks. Racks can be organized into rows so teams can check available capacity and mark unusable rack units. For network records, RackTables manages IP addresses and networks, documents NAT rules, and stores load-balancing policies and configurations. Users can maintain device ports and the links between them. Flexible tags and filtering rules help organize and retrieve hardware, while files can be attached to system objects. Accounts and permissions control which actions users may perform. RackTables is an on-premises PHP application accessed through a browser with an internet connection. The project identifies version 0.22.0 as its latest stable release. It provides a mailing list and bug tracker; issue reports are public by default but can be made private.