SubnectCalc is a tool to help you to make the network IP addressing on macOS. Downloads Download SubnetCalc last version (2.5) for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM) Download SubnetCalc 2.4 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM) Download SubnetCalc 2.3 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM) Download SubnetCalc 2.2