# IP Subnet Calc vs CIDR Calc

The clearest difference is ratings volume: IP Subnet Calc at 251 against CIDR Calc's 1. IP Subnet Calc also leads on iOS requirement (9.0 vs 16.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for IP Subnet Calc against 5.0 for CIDR Calc. That said, the two scores are not equally well evidenced: IP Subnet Calc has 251 ratings behind it against 1, so its average is the more settled of the two.

IP Subnet Calc ships an update every 15 months, CIDR Calc every 19 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | IP Subnet Calc | CIDR Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (251 ratings)](https://appshunter.io/ios/app/ip-subnet-calc/id1282188941/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cidr-calc/id1565667811/reviews)** |
| Number of ratings | **251** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 15 months** | Every 19 months |
| Monetization | Free | Free |
| Size | 20 MB | 1 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Goncalo Silva](https://appshunter.io/developer/1281379202) | [Paul Smicker](https://appshunter.io/developer/1565667813) |

## What reviewers say

### IP Subnet Calc

[App page](https://appshunter.io/ios/app/ip-subnet-calc/id1282188941)

This tool calculates IPv4 and IPv6 subnets, providing detailed information such as the number of hosts, subnet size, class, and network addresses. Use the interactive CIDR slider to dynamically adjust subnet properties.

**Highlights:** IPv4 and IPv6 subnet calculation, Displays number of hosts, Shows subnet size and class, Provides network and broadcast addresses, Interactive CIDR slider

**Features:** macOS Compatibility

**In-app purchases:** none


### CIDR Calc

[App page](https://appshunter.io/ios/app/cidr-calc/id1565667811)

Calculate subnet details, including IP addresses, masks, and reverse masks, using CIDR notation. Generate and share lists of subnets and hosts within the next higher octet. This tool simplifies network calculations for IT professionals and students.

**Highlights:** Subnet calculation, IP address display, Mask and reverse mask, Shareable subnet lists, Host calculation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IP Subnet Calc free?

IP Subnet Calc is free to download, with no in-app purchases.

### Is CIDR Calc free?

CIDR Calc is free to download, with no in-app purchases.

### Which has better reviews, IP Subnet Calc or CIDR Calc?

CIDR Calc is rated higher. IP Subnet Calc averages 4.9 out of 5 from 251 ratings, while CIDR Calc averages 5.0 from 1 ratings.

### Do IP Subnet Calc or CIDR Calc have ads?

Neither IP Subnet Calc nor CIDR Calc shows ads.

### Which is updated more often, IP Subnet Calc or CIDR Calc?

IP Subnet Calc ships an update every 15 months, and CIDR Calc every 19 months. Most recently, IP Subnet Calc was updated on October 24, 2026 and CIDR Calc on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*