# Subnet Mask Calc vs Subnet Calculator +

The clearest difference is rating: Subnet Calculator + at 4.0 against Subnet Mask Calc's 2.3. Subnet Calculator + also leads on ads (none vs shown) and review sentiment (73% vs 39%). Subnet Mask Calc's advantage is in-app purchases (none vs 4) and update cadence (every 5 months vs every 64 months). On price and device support there is nothing between them.

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

Subnet Calculator + holds the better App Store score, 4.0 against 2.3. Both are backed by a comparable volume of ratings — 22 and 7 respectively. Written reviews point the same way: 39% of Subnet Mask Calc's written reviews are positive against 73% of Subnet Calculator +'s.

Subnet Mask Calc ships an update every 5 months, Subnet Calculator + every 64 months. The most recent releases landed on September 8, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | Subnet Mask Calc | Subnet Calculator + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (22 ratings)](https://appshunter.io/ios/app/subnet-mask-calc/id406375326/reviews) | **[4.0 (7 ratings)](https://appshunter.io/ios/app/subnet-calculator-plus/id445990645/reviews)** |
| Number of ratings | **22** | 7 |
| Positive reviews | 38.9% of reviews | **72.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 64 months |
| Monetization | Ad-supported | **Free** |
| Size | 3 MB | 1 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [John Rouda](https://appshunter.io/developer/396597129) | [Steven Eppler](https://appshunter.io/developer/312274388) |

## 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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Subnet Mask Calc free?

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

### Is Subnet Calculator + free?

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

### Which has better reviews, Subnet Mask Calc or Subnet Calculator +?

Subnet Calculator + is rated higher. Subnet Mask Calc averages 2.3 out of 5 from 22 ratings, while Subnet Calculator + averages 4.0 from 7 ratings.

### Do Subnet Mask Calc or Subnet Calculator + have ads?

Subnet Mask Calc shows ads; Subnet Calculator + does not.

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

Subnet Mask Calc ships an update every 5 months, and Subnet Calculator + every 64 months. Most recently, Subnet Mask Calc was updated on September 8, 2026 and Subnet Calculator + on June 7, 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.*