# Subnet Mask Calc vs About Subnet Mask

The clearest difference is rating: About Subnet Mask at 5.0 against Subnet Mask Calc's 2.4. About Subnet Mask also leads on update cadence (every 9 days vs every 5 months). Subnet Mask Calc's advantage is ratings volume (23 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.

About Subnet Mask holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: Subnet Mask Calc has 23 ratings behind it against 1, so its average is the more settled of the two.

Subnet Mask Calc ships an update every 5 months, About Subnet Mask every 9 days. The most recent releases landed on November 1, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Subnet Mask Calc | About Subnet Mask |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (23 ratings)](https://appshunter.io/ios/app/subnet-mask-calc/id406375326/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/about-subnet-mask/id1662782439/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 3 MB | 9 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [John Rouda](https://appshunter.io/developer/396597129) | [Jaehwa Noh](https://appshunter.io/developer/1629220949) |

## 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, Vision Pro support

**In-app purchases:** none


### About Subnet Mask

[App page](https://appshunter.io/ios/app/about-subnet-mask/id1662782439)

This utility tool calculates subnet masks based on IP and subnet inputs. It supports both IP and CIDR formats, determines class-based network numbers, and saves previous calculations for easy access. Users can also check the class of any IP address.

**Highlights:** Subnet mask calculation, IP and CIDR format support, Class-based network number calculation, IP class checking, Search history

**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 About Subnet Mask free?

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

### Which has better reviews, Subnet Mask Calc or About Subnet Mask?

About Subnet Mask is rated higher. Subnet Mask Calc averages 2.4 out of 5 from 23 ratings, while About Subnet Mask averages 5.0 from 1 ratings.

### Do Subnet Mask Calc or About Subnet Mask have ads?

Both Subnet Mask Calc and About Subnet Mask show ads.

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

Subnet Mask Calc ships an update every 5 months, and About Subnet Mask every 9 days. Most recently, Subnet Mask Calc was updated on November 1, 2026 and About Subnet Mask on October 15, 2026.

---

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