CIDR Calculator is a free app for Android that can be found under the System Maintenance section of System Utilities.
Classless Inter-Domain Routing (CIDR) is a routing system that employs a single IP address. To assign address blocks, the CIDR packet routing technology is employed. A hostname and an address are combined to form an IP address.
The calculator identifies locally set IPv4 and IPv6 addresses automatically, enabling you to easily categorise and analyse them.
To fulfil host needs, IT professionals and students may use this tool to split networks into smaller, more efficient subnets.
A normal subnet calculator is also included to determine the accessible hosts, address range, network address, and broadcast address of a particular IPv4 network, as well as a simple slider to enlarge or reduce networks.