# Subnet Mask Calc vs NFire Connect

The clearest difference is ads: NFire Connect at none against Subnet Mask Calc's shown. Subnet Mask Calc's advantage is update cadence (every 5 months vs every 14 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Subnet Mask Calc ships an update every 5 months, NFire Connect every 14 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Subnet Mask Calc | NFire Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (23 ratings)](https://appshunter.io/ios/app/subnet-mask-calc/id406375326/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 14 months |
| Monetization | Ad-supported | — |
| Size | 3 MB | 41 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [John Rouda](https://appshunter.io/developer/396597129) | [Atigo Enterprises Limited](https://appshunter.io/developer/1666528346) |

## What reviewers say

### Subnet Mask Calc

[App page](https://appshunter.io/ios/app/subnet-mask-calc/id406375326)

This free utility app quickly calculates subnet masks and wildcard masks for IPv4 networks. It's designed for IT professionals and students to simplify complex networking tasks and aid in certification preparation, offering offline functionality.

**Highlights:** Lightning-fast subnet calculations, Offline network connectivity, Calculates IP and wildcard masks, User-friendly interface, Ideal for IT engineers, Learning aid for certifications

**Features:** macOS Compatibility

**In-app purchases:** none


### NFire Connect

[App page](https://appshunter.io/ios/app/nfire-connect/id1667462272)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Subnet Mask Calc free?

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

### Is NFire Connect free?

NFire Connect is free to download, with no in-app purchases.

### Do Subnet Mask Calc or NFire Connect have ads?

Subnet Mask Calc shows ads; NFire Connect does not.

### Which is updated more often, Subnet Mask Calc or NFire Connect?

Subnet Mask Calc ships an update every 5 months, and NFire Connect every 14 months. Most recently, Subnet Mask Calc was updated on October 23, 2026 and NFire Connect on October 25, 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.*