# Simple Subnet Calc vs CIDR Calc

The clearest difference is update cadence: Simple Subnet Calc at every 6 months against CIDR Calc's every 19 months. CIDR Calc's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 18.0). On price, rating, ratings volume 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 — 5.0 for Simple Subnet Calc against 5.0 for CIDR Calc. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Simple Subnet Calc ships an update every 6 months, CIDR Calc every 19 months. The most recent releases landed on June 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Simple Subnet Calc | CIDR Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/simple-subnet-calc/id665684290/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cidr-calc/id1565667811/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 19 months |
| Monetization | Free | Free |
| Size | 1 MB | 1 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Diogo Andre Assumpcao](https://appshunter.io/developer/665684293) | [Paul Smicker](https://appshunter.io/developer/1565667813) |

## What reviewers say

### Simple Subnet Calc

[App page](https://appshunter.io/ios/app/simple-subnet-calc/id665684290)

This utility quickly calculates IPv4 and IPv6 subnets with a clean interface. It's designed for network professionals and students needing fast, accurate subnetting tools on their iPhone.

**Highlights:** IPv4 subnetting, IPv6 subnetting, Clean interface, Ad-free experience, Designed for professionals

**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 Simple Subnet Calc free?

Simple 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, Simple Subnet Calc or CIDR Calc?

Simple Subnet Calc and CIDR Calc are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

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

Neither Simple Subnet Calc nor CIDR Calc shows ads.

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

Simple Subnet Calc ships an update every 6 months, and CIDR Calc every 19 months. Most recently, Simple Subnet Calc was updated on June 1, 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.*