# Subnet Calculator + vs VLSM | Subnet

The clearest difference is in-app purchases: VLSM | Subnet at none against Subnet Calculator +'s 4. VLSM | Subnet also leads on update cadence (every 9 months vs every 64 months) and iOS requirement (15.6 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Subnet Calculator + sells 4 one-off in-app purchases. VLSM | Subnet asks for nothing beyond the download.

Subnet Calculator + ships an update every 64 months, VLSM | Subnet every 9 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Subnet Calculator + | VLSM | Subnet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (7 ratings)](https://appshunter.io/ios/app/subnet-calculator-plus/id445990645/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 64 months | **Every 9 months** |
| Monetization | Free | — |
| Size | 1 MB | 23 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Steven Eppler](https://appshunter.io/developer/312274388) | [Edwin Mejia](https://appshunter.io/developer/1620400021) |

## What reviewers say

### Subnet Calculator +

[App page](https://appshunter.io/ios/app/subnet-calculator-plus/id445990645)

This utility app simplifies network calculations for professionals and students. It offers tools for IPv4 and IPv6 subnetting, including live CIDR sliders and subnet splitting. Results can be easily shared or copied.

**Highlights:** IPv4 subnet calculator with CIDR slider, Subnet Splitter for VLSM, IPv6 calculator with prefix slider, Auto-detect device IP from Wi-Fi, Navigate adjacent subnets, Share or copy results, Native Mac support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Large Tip | $4.99 | one-time |
| Huge Tip | $9.99 | one-time |


### VLSM | Subnet

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Subnet Calculator + free?

Subnet Calculator + is free to download, with in-app purchases available.

### Is VLSM | Subnet free?

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

### Do Subnet Calculator + or VLSM | Subnet have ads?

Neither Subnet Calculator + nor VLSM | Subnet shows ads.

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

Subnet Calculator + ships an update every 64 months, and VLSM | Subnet every 9 months. Most recently, Subnet Calculator + was updated on October 13, 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.*