Subnet Calculator+
v4.0
Fast, intuitive subnet calculator for networking professionals and students.
Features
IPv4 subnet calculator with live CIDR slider (1–30)
IPv6 calculator with prefix slider (1–128)
Subnet Splitter for equal-split and VLSM subdivision
Auto-detect device IP and subnet from Wi-Fi
Navigate between adjacent subnets
Share or copy results instantly
Displays subnet mask, network/broadcast address, usable host range, max hosts, wildcard mask
iOS 14.0+, macOS 15.6+ (Mac Catalyst)
