Subnet Plus vs IPv4 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.

IPv4 Subnet Calculator is a simple and intuitive app designed to help network administrators, IT professionals, and students easily calculate subnet information for IPv4 addresses. Say goodbye to manual subnet calculations and let this app do the work for you. Key Features: • Easy-to-use interface: Just enter the IP address, select the CIDR notation or subnet mask, and get the subnet information in an instant. • Detailed subnet information: The app provides essential information such as network address, broadcast address, subnet mask, available hosts, and usable host range. • Supports CIDR and subnet mask input: Choose between CIDR notation or subnet mask to define your subnets, making it convenient for users who prefer either method. • Responsive design: The app is designed to work smoothly on various screen sizes, ensuring a pleasant user experience on both iPhones and iPads. IPv4 Subnet Calculator is perfect for anyone who needs to quickly find subnet information without the hassle of manual calculations. Download it now and simplify your subnet calculations!