# IPv6 Subneting vs CIDR Calc

The clearest difference is update cadence: IPv6 Subneting at weekly against CIDR Calc's every 19 months. IPv6 Subneting also leads on iOS requirement (10.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

IPv6 Subneting ships an update weekly, CIDR Calc every 19 months. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | IPv6 Subneting | CIDR Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cidr-calc/id1565667811/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 19 months |
| Monetization | — | Free |
| Size | 12 MB | 1 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Chuk Fong Ng](https://appshunter.io/developer/1086110905) | [Paul Smicker](https://appshunter.io/developer/1565667813) |

## What reviewers say

### IPv6 Subneting

[App page](https://appshunter.io/ios/app/ipv6-subneting/id1147206940)

**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 IPv6 Subneting free?

IPv6 Subneting is free to download, with no in-app purchases.

### Is CIDR Calc free?

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

### Do IPv6 Subneting or CIDR Calc have ads?

Neither IPv6 Subneting nor CIDR Calc shows ads.

### Which is updated more often, IPv6 Subneting or CIDR Calc?

IPv6 Subneting ships an update weekly, and CIDR Calc every 19 months. Most recently, IPv6 Subneting was updated on October 20, 2026 and CIDR Calc on October 10, 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.*