# IP and Subnet Calculator vs CIDR

The clearest difference is iOS requirement: IP and Subnet Calculator at 13.0 against CIDR's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. IP and Subnet Calculator sells 1 one-off in-app purchase and CIDR sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

IP and Subnet Calculator ships an update monthly, CIDR every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IP and Subnet Calculator | CIDR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cidr/id1564239813/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 5 MB | 23 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Le Vu](https://appshunter.io/developer/888757091) | [akira ohmachi](https://appshunter.io/developer/1338624340) |

## What reviewers say

### IP and Subnet Calculator

[App page](https://appshunter.io/ios/app/ip-and-subnet-calculator/id1014969125)

This utility simplifies IP address and subnet calculations. It supports various input formats and provides binary and decimal views of IP addresses. The app also includes error checking for incorrect data inputs.

**Highlights:** Subnet Mask, CIDR, Wildcard Mask support, Host requirement calculation, Network navigation via swipe, Decimal and Binary IP views, Input data validation and alerts

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### CIDR

[App page](https://appshunter.io/ios/app/cidr/id1564239813)

This utility calculates IP address ranges from an IP address and subnet mask. It supports IPv4 calculations, including prefix display, address range counts, and bit notation. Useful for quick CIDR notation checks and subnet mask conversions.

**Highlights:** IP address range calculation, Subnet mask to CIDR conversion, IPv4 prefix display, Number of address ranges, Bit notation display, Quick reference table

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is IP and Subnet Calculator free?

IP and Subnet Calculator is free to download, with in-app purchases available.

### Is CIDR free?

CIDR is free to download, with in-app purchases available.

### Do IP and Subnet Calculator or CIDR have ads?

Neither IP and Subnet Calculator nor CIDR shows ads.

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

IP and Subnet Calculator ships an update monthly, and CIDR every 3 weeks. Most recently, IP and Subnet Calculator was updated on October 25, 2026 and CIDR on October 24, 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.*