# Subnetwork vs VLSM | Subnet

The clearest difference is update cadence: Subnetwork at every 3 months against VLSM | Subnet's every 9 months. Subnetwork also leads on iOS requirement (13.0 vs 15.6). 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.

Subnetwork ships an update every 3 months, VLSM | Subnet every 9 months. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Subnetwork | VLSM | Subnet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/subnetwork/id1523667659/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | — |
| Size | 1 MB | 23 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Nicholas Smart](https://appshunter.io/developer/1523667661) | [Edwin Mejia](https://appshunter.io/developer/1620400021) |

## 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


### VLSM | Subnet

[App page](https://appshunter.io/ios/app/vlsm-subnet/id6504495906)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Subnetwork free?

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

### Is VLSM | Subnet free?

VLSM | Subnet is free to download, with no in-app purchases.

### Do Subnetwork or VLSM | Subnet have ads?

Neither Subnetwork nor VLSM | Subnet shows ads.

### Which is updated more often, Subnetwork or VLSM | Subnet?

Subnetwork ships an update every 3 months, and VLSM | Subnet every 9 months. Most recently, Subnetwork was updated on September 30, 2026 and VLSM | Subnet on October 8, 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.*