About Subnet Calculator +
SubnetCalc is a fast, intuitive subnet calculator for networking professionals and students. Features: - IPv4 subnet calculator with live CIDR slider (1-30) - Subnet Splitter for equal-split and VLSM subdivision - IPv6...
SubnetCalc is a fast, intuitive subnet calculator for networking professionals and students. Features: - IPv4 subnet calculator with live CIDR slider (1-30) - Subnet Splitter for equal-split and VLSM subdivision - IPv6 calculator with prefix slider (1-128) - Auto-detect your device's IP and subnet from Wi-Fi - Navigate between adjacent subnets - Share or copy results instantly - Native Mac support via Mac Catalyst Enter any IP address, adjust the CIDR prefix with the slider, and instantly see: - Subnet mask - Network address - Broadcast address - Usable host range - Maximum hosts - Wildcard mask The Subnet Splitter lets you divide a network into equal subnets or use VLSM to allocate subnets by host count. Perfect for network planning and design. No ads. No tracking. No subscription.
Version History What's New in SubnetCalc 4.0: - New IPv6 Calculator tab with full prefix support (1-128) - New Subnet Splitter with equal-split and VLSM modes - Tip Jar to support development - Code modernization and bug fixes 4.0 Mar 3 Rewritten in Swift and SwiftUI. New dark mode support. Fixed share sheet bug. 3.0 12/13/2020 This update from Apple will improve the functionality of this app. No new features are included. iOS 8.3 fixes Works on iPad and iPhone 6 and 6+ natively now as well. 2.0 05/05/2015 1.0 06/29/2011
Previous Versions
Here you can find the changelog of Subnet Calculator + since it was posted on our website on 2025-05-10 14:02:53.
The latest version is 4.0 and it was updated on 2026-06-27 02:51:26. See below the changes in each version.
Subnet Calculator + version 4.0
Updated At: 2026-06-06
Changes: Version History What's New in SubnetCalc 4.0:
- New IPv6 Calculator tab with full prefix support (1-128)
- New Subnet Splitter with equal-split and VLSM modes
- Tip Jar to support development
- Code modernization and bug fixes 4.0 Mar 3 Rewritten in Swift and SwiftUI. New dark mode support. Fixed share sheet bug. 3.0 12/13/2020 This update from Apple will improve the functionality of this app. No new features are included.
iOS 8.3 fixes
Works on iPad and iPhone 6 and 6+ natively now as well. 2.0 05/05/2015 1.0 06/29/2011
Subnet Calculator + version 4.0
Updated At: 2026-03-03
Changes: What's New in SubnetCalc 4.0:
- New IPv6 Calculator tab with full prefix support (1-128)
- New Subnet Splitter with equal-split and VLSM modes
- Tip Jar to support development
- Code modernization and bug fixes
Subnet Calculator + version -
Updated At: 2025-10-01
Subnet Calculator + version 3.0
Updated At: 2020-12-13
Changes: Rewritten in Swift and SwiftUI. New dark mode support. Fixed share sheet bug.
Disclaimer
Official App Store Link
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