Zero Network Tools

Fast IPv4 Subnet Math on Watch

Only for Watch

$2.99

Apple Watch

ZeroNet Subnet Calculator puts quick IPv4 subnet math on your Apple Watch. Zero Network Tools Zero Network Tools turns your Apple Watch into a pocket-sized network administration toolkit for IPv4, IPv6, subnet planning, device setup, troubleshooting, and field work. Calculate IPv4 subnets from your wrist. Enter an IP address, choose a CIDR prefix, and instantly see the network address, subnet mask, usable host range, broadcast address, wildcard mask, host count, suggested gateway, and whether the address is usable, reserved, a network ID, or a broadcast address. Use the This Watch tool to detect your watch’s current Wi-Fi or LTE IPv4 address and calculate the subnet it is connected to. Quickly confirm the network, mask, broadcast address, usable range, and address role without reaching for a laptop. Plan networks with built-in admin tools: • VLSM subnet planner • DHCP scope planner • VLAN planning notes • Previous and next subnet navigation • Second-IP subnet membership checker • Saved subnet plans • Router, switch, static device, and change-ticket templates • Common port reference • Private, loopback, APIPA, multicast, and reserved range reference • IPv6 prefix calculator • DNS A/AAAA lookup • Binary and hexadecimal subnet math logs • TXT, CSV, Markdown, and JSON export sharing Zero Network Tools is useful for network admins, field technicians, homelab builders, IT students, cybersecurity learners, and anyone who works with routers, switches, VLANs, DHCP scopes, servers, printers, cameras, IoT devices, or static IP assignments. Cool things you can do: Check if an IP is safe to assign Find out if an address is a broadcast address Detect the subnet your watch is currently using Build DHCP scopes after reserved infrastructure addresses Plan VLANs and document gateway settings Generate device registration notes Compare binary and hexadecimal subnet math Look up common service ports like SSH, FTP, NFS, NNTP, DNS, DHCP, RDP, VPN, and more Resolve DNS records from your watch Export subnet records for tickets, documentation, or sharing Built for quick checks, real network work, and learning subnet math anywhere.

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The developer, jonathan maharaj, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • jonathan maharaj
    Size
    • 1.1 MB
    Category
    • Developer Tools
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Apple Watch
      Requires watchOS 26.5 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © (c) Unidef Systems
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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