# Simple Cidr — Cidr notation lookup tool

> Cidr notation lookup tool (iPhone/iPad app by Luke Pilkington.)

- Source: https://appshunter.io/ios/app/simple-cidr/id1515186313 (this page in markdown: same URL + `.md`)
- Developer: [Luke Pilkington](https://appshunter.io/developer/1515186312)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 0 MB
- Languages: English
- Released: 2020-05-29
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/simple-cidr/id1515186313/reviews.md

## What is Simple Cidr?

I often found that I didn't want a complicated calculator to translate Cidr notation into subnet mask and so fourth. So I made a simple one...


## Version history (last 4 releases)

### 2.4 — 2025-04-19

updated to support newer OS

### 2.1 — 2022-11-13

Updated support/privacy url

### 2.0 — 2022-10-31

updated look and feel as a part of the conversion to SwiftUI framework

### 1.0 — 2020-05-29

No release notes.

## Apps similar to Simple Cidr

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Subnet Gauge](https://appshunter.io/ios/app/subnet-gauge/id567064150) | — | Free | Productivity |
| [Sky.739](https://appshunter.io/ios/app/sky739/id1613331315) | — | Free | Productivity |
| [Subnet Mask](https://appshunter.io/ios/app/subnet-mask/id580727679) | 4.6 (31) | Free | Productivity |
| [Splashtop Secure Workspace](https://appshunter.io/ios/app/splashtop-secure-workspace/id1671952213) | 5.0 (2) | Free | Productivity |
| [HexaEight Authenticator](https://appshunter.io/ios/app/hexaeight-authenticator/id1584547289) | — | Free | Productivity |
| [Subnet Mask Wheel](https://appshunter.io/ios/app/subnet-mask-wheel/id560947458) | 5.0 (1) | Free | Productivity |

## More apps by Luke Pilkington

- [AI Nonsense](https://appshunter.io/ios/app/ai-nonsense/id1659566308)
- [PipeChecker](https://appshunter.io/ios/app/pipechecker/id1660307712)
- [ToolKeeper](https://appshunter.io/ios/app/toolkeeper/id6444084304)
- [BetweentheBookCovers](https://appshunter.io/ios/app/betweenthebookcovers/id6448685582)
- [OctoCheck](https://appshunter.io/ios/app/octocheck/id6471322030)

All apps by Luke Pilkington: https://appshunter.io/developer/1515186312

## Related topics

[simple cidr](https://appshunter.io/ios/topics/simple-cidr) · [cidr tool](https://appshunter.io/ios/topics/cidr-tool)

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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 2026-05-14.*