# Subnet Calculator — IP Subnet & CIDR Calculator

> IP Subnet & CIDR Calculator (iPhone/iPad app by Chun Yu Leung.)

- Source: https://appshunter.io/ios/app/subnet-calculator/id6760517117 (this page in markdown: same URL + `.md`)
- Developer: [Chun Yu Leung](https://appshunter.io/developer/1703764941)
- Category: Developer Tools, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 24 MB
- Languages: American English
- Released: 2026-03-18
- Data updated: 2026-08-16
- User reviews in markdown: https://appshunter.io/ios/app/subnet-calculator/id6760517117/reviews.md

## What is Subnet Calculator?

Subnet Calculator puts essential subnet math in your pocket. Enter any IP and CIDR, and instantly see network address, broadcast, usable range, and more—ideal for admins, developers, and anyone planning or troubleshooting networks.

► Subnet Calculator
• Support for IPv4 and IPv6; switch between them with a single tap.
• Enter any IP address and adjust CIDR prefix length with a slider (/0 to /32 for IPv4, /0 to /128 for IPv6).
• Instant results: network address, subnet mask, broadcast, first and last usable IP, host range, and total addresses.
• IPv4: see address class (A/B/C/D/E), wildcard mask, and usable host count.
• IPv6: see prefix length and total addresses in compact form (K, M, B).
• Long-press any result to copy it to the clipboard.

► General
• Dark and light theme.
• Portrait-oriented layout for one-handed use.
• No account required. Free to use, with ads to support development.

Built for quick subnet planning, subnetting practice, and network design—handy for home labs, offices, and developers.


## Version history (last 2 releases)

### 1.6 — 2026-03-18

Updated app icon.

### 1.2 — 2026-03-18

No release notes.

## More apps by Chun Yu Leung

- [Ninja Dojo](https://appshunter.io/ios/app/ninja-dojo/id6463002374)
- [Whack A Mole!](https://appshunter.io/ios/app/whack-a-mole/id6466164772)
- [Snake 100](https://appshunter.io/ios/app/snake-100/id6467557375)
- [UDP TCP Sender & Receiver](https://appshunter.io/ios/app/udp-tcp-sender-and-receiver/id6759448996)
- [Advanced IP Scanner](https://appshunter.io/ios/app/advanced-ip-scanner/id6759854768)

All apps by Chun Yu Leung: https://appshunter.io/developer/1703764941

## Related topics

[subnet calculator 192](https://appshunter.io/ios/topics/subnet-calculator-192) · [ip and subnet calculator pro](https://appshunter.io/ios/topics/ip-and-subnet-calculator-pro)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*