# IP Calculator: Subnet & CIDR

> IP Calculator: Subnet & CIDR (iPhone/iPad app by Nicolai Tufar.)

- Source: https://appshunter.io/ios/app/ip-calculator-subnet-and-cidr/id6818343731 (this page in markdown: same URL + `.md`)
- Developer: [Nicolai Tufar](https://appshunter.io/developer/6816259944)
- Category: Utilities, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 0 MB
- Languages: American English
- Released: 2026-10-09
- Data updated: 2026-10-26

## What is IP Calculator?

IP Calculator is a fast, no-nonsense IPv4 subnet calculator for network engineers, students and anyone configuring a network.

Set an address and prefix with native iOS wheels: four octets (0-255) and a CIDR prefix (/0 to /32). Results recalculate live while the wheels spin, so you can explore subnets as fast as you can scroll.

FOR ANY CIDR BLOCK YOU GET
- Subnet mask
- Number of hosts
- Broadcast address
- Wildcard mask
- Usable host address range
- Netmask in binary
- IP classification: class A-E, public or private, plus special ranges like loopback, link-local and multicast

CONVENIENT
- Tap any result to copy it to the clipboard
- Light and dark mode
- Works on iPhone and iPad
- VoiceOver support

PRIVATE BY DESIGN
Everything is calculated on your device. No account, no ads, no analytics, no network access.

IP Calculator is open source: github.com/ntufar/IPCalculator

## Is IP Calculator safe?

Not enough ratings yet to assess IP Calculator.

## Is IP Calculator legit?

IP Calculator: Subnet & CIDR has limited verification signals. The AppsHunter Legitimacy Score for IP Calculator is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.1.1 — 2026-10-09

No release notes.

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## More apps by Nicolai Tufar

- [Filodos](https://appshunter.io/ios/app/filodos/id6816478929)

All apps by Nicolai Tufar: https://appshunter.io/developer/6816259944

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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 2026-10-26.*