# Subnetwork vs About Subnet Mask

The clearest difference is rating: About Subnet Mask at 5.0 against Subnetwork's 4.4. About Subnet Mask also leads on update cadence (every 9 days vs every 3 months). Subnetwork's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, 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.

About Subnet Mask holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Subnetwork has 7 ratings behind it against 1, so its average is the more settled of the two.

Subnetwork ships an update every 3 months, About Subnet Mask every 9 days. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Subnetwork | About Subnet Mask |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/subnetwork/id1523667659/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/about-subnet-mask/id1662782439/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 9 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Nicholas Smart](https://appshunter.io/developer/1523667661) | [Jaehwa Noh](https://appshunter.io/developer/1629220949) |

## What reviewers say

### Subnetwork

[App page](https://appshunter.io/ios/app/subnetwork/id1523667659)

This app is a comprehensive IPv4 subnet calculator designed for both students and IT professionals. It offers intuitive tools for calculating single subnets, FLSM, and VLSM, with options for detailed binary calculations and saving subnet configurations.

**Highlights:** IPv4 subnet calculation, FLSM subnet generation, VLSM subnet generation, Detailed binary calculations, Save and retrieve subnet configurations, Intuitive user interface

**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 Subnetwork free?

Subnetwork 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, Subnetwork or About Subnet Mask?

About Subnet Mask is rated higher. Subnetwork averages 4.4 out of 5 from 7 ratings, while About Subnet Mask averages 5.0 from 1 ratings.

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

About Subnet Mask shows ads; Subnetwork does not.

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

Subnetwork ships an update every 3 months, and About Subnet Mask every 9 days. Most recently, Subnetwork was updated on September 30, 2026 and About Subnet Mask on September 29, 2026.

---

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