# Subnetwork vs CIDR Calc

The clearest difference is rating: CIDR Calc at 5.0 against Subnetwork's 4.4. Subnetwork's advantage is update cadence (every 3 months vs every 19 months) and ratings volume (7 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CIDR Calc holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Subnetwork has 7 ratings behind it against 1, so its average is the more settled of the two.

Subnetwork ships an update every 3 months, CIDR Calc every 19 months. The most recent releases landed on September 4, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Subnetwork | CIDR Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/subnetwork/id1523667659/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cidr-calc/id1565667811/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | Free | Free |
| Size | 1 MB | 1 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Nicholas Smart](https://appshunter.io/developer/1523667661) | [Paul Smicker](https://appshunter.io/developer/1565667813) |

## What reviewers say

### Subnetwork

[App page](https://appshunter.io/ios/app/subnetwork/id1523667659)

This app is a comprehensive IPv4 subnet calculator designed for both students and IT professionals. It offers intuitive tools for calculating single subnets, FLSM, and VLSM, with options for detailed binary calculations and saving subnet configurations.

**Highlights:** IPv4 subnet calculation, FLSM subnet generation, VLSM subnet generation, Detailed binary calculations, Save and retrieve subnet configurations, Intuitive user interface

**Features:** macOS Compatibility, Vision Pro support

**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 Subnetwork free?

Subnetwork 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, Subnetwork or CIDR Calc?

CIDR Calc is rated higher. Subnetwork averages 4.4 out of 5 from 7 ratings, while CIDR Calc averages 5.0 from 1 ratings.

### Do Subnetwork or CIDR Calc have ads?

Neither Subnetwork nor CIDR Calc shows ads.

### Which is updated more often, Subnetwork or CIDR Calc?

Subnetwork ships an update every 3 months, and CIDR Calc every 19 months. Most recently, Subnetwork was updated on September 4, 2026 and CIDR Calc on September 8, 2026.

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