# Subnet Calculator + vs VSWR Convert +

The clearest difference is price: Subnet Calculator + at Free against VSWR Convert +'s $0.29. VSWR Convert +'s advantage is in-app purchases (none vs 4) and update cadence (every 8 days vs every 64 months). On ads, device support and iOS requirement there is nothing between them.

Subnet Calculator + is free to download; VSWR Convert + costs $0.29 up front. Subnet Calculator + sells 4 one-off in-app purchases. VSWR Convert + asks for nothing beyond the download.

Subnet Calculator + ships an update every 64 months, VSWR Convert + every 8 days. Both last shipped on October 27, 2026.

## The numbers

| Metric | Subnet Calculator + | VSWR Convert + |
| --- | --- | --- |
| Price | **Free** | $0.29 |
| Rating | **[4.0 (7 ratings)](https://appshunter.io/ios/app/subnet-calculator-plus/id445990645/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 64 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 1 MB | 1 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Steven Eppler](https://appshunter.io/developer/312274388) | [Jeff Curtis](https://appshunter.io/developer/358219019) |

## 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

**Features:** Vision Pro 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 |


### VSWR Convert +

[App page](https://appshunter.io/ios/app/vswr-convert-plus/id6445927210)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Subnet Calculator + free?

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

### Is VSWR Convert + free?

VSWR Convert + costs $0.29, with no in-app purchases.

### Do Subnet Calculator + or VSWR Convert + have ads?

Neither Subnet Calculator + nor VSWR Convert + shows ads.

### Which is updated more often, Subnet Calculator + or VSWR Convert +?

Subnet Calculator + ships an update every 64 months, and VSWR Convert + every 8 days. Most recently, Subnet Calculator + was updated on October 27, 2026 and VSWR Convert + on October 27, 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.*