Subnet Plus vs IP and Subnet Calculator

Subnet Plus is a fast, beautiful subnet calculator for network engineers, sysadmins, and students, now completely rebuilt for iPhone and iPad. Type any IPv4 or IPv6 address and instantly see the network address, broadcast, usable host range, subnet mask, wildcard mask, prefix length, total and usable hosts, IP class, and address type. A live prefix stepper lets you dial the mask up or down and watch every value update in real time. NETWORK CALCULATIONS • IPv4 and IPv6, auto-detected • Binary view with network/host bits color-coded • Visual address-space map PRO TOOLS • VLSM Designer: carve a network into right-sized subnets and save the plan • CIDR to subnet mask to wildcard converter • Subnet membership: is an address inside a network? • Range to CIDR, and supernet / aggregate • CIDR cheat sheet NETWORK UTILITIES • DNS Lookup: A, AAAA, MX, NS, TXT, CNAME, SOA, SRV, and reverse PTR, using your device's resolver or any IPv4/IPv6 DNS server you add • Ping: round-trip time and packet loss • Traceroute: see the path to any host • Path Monitor (Pro): a live, MTR-style traceroute with per-hop packet loss and latency • Network Scanner (Pro): find the active devices on your local network, their names, and open ports • Email Auth: check a domain's SPF, DKIM, and DMARC records SIRI, WIDGETS & APPLE INTELLIGENCE • Explain this: turn any subnet calculation or Email Auth report into a plain-English explanation, generated on-device by Apple Intelligence • Siri & Shortcuts: calculate a subnet, ping a host, check a port, or ask "What's my network?" by voice, and use the same actions in your own Shortcuts • Live Activities: follow Path Monitor and Network Scanner from the Lock Screen and Dynamic Island • Home Screen widget: pin any saved subnet, with a different subnet per widget SAVE & SYNC • Label and save subnets, VLSM plans, and lookups • Everything syncs across your devices with iCloud • Share and export your results Available in 45 languages. Remove ads with a one-time in-app purchase.

This app is used to calculate IP address and subnet. It is simple and easy to use. Features: • Support the input data: Subnet Mask, CIDR Notation, Wildcard Mask, Hosts requirement • Swipe on screen Left or Right to Move to adjacent network • Swipe on screen Up or Down to see Decimal IP address or Binary IP address • Check and alert when the data inputs not correctly. This tool is absolutely useful for IT engineers or anyone study about IP network and Subnetting.