# Subnet Mask Calc vs Subnet Plus

The clearest difference is review sentiment: Subnet Plus at 89% against Subnet Mask Calc's 35%. Subnet Plus also leads on rating (4.7 vs 2.4) and update cadence (monthly vs every 5 months). Subnet Mask Calc's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 26.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Subnet Plus sells 1 one-off in-app purchase. Subnet Mask Calc asks for nothing beyond the download.

Subnet Plus holds the better App Store score, 4.7 against 2.4. Both are backed by a comparable volume of ratings — 23 and 57 respectively. Written reviews point the same way: 35% of Subnet Mask Calc's written reviews are positive against 89% of Subnet Plus's.

Subnet Mask Calc ships an update every 5 months, Subnet Plus monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Subnet Mask Calc | Subnet Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (23 ratings)](https://appshunter.io/ios/app/subnet-mask-calc/id406375326/reviews) | **[4.7 (57 ratings)](https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668/reviews)** |
| Number of ratings | 23 | **57** |
| Positive reviews | 35.0% of reviews | **89.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Ad-supported | **Free** |
| Size | 3 MB | 18 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Rouda](https://appshunter.io/developer/396597129) | [Ted Trentler](https://appshunter.io/developer/380264826) |

## 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 Plus

[App page](https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668)

Calculate IP subnets with ease on your iPhone or iPad. This tool helps visualize binary and hex information for subnets, aiding in network studies and professional calculations. Save your calculated networks for future reference.

**Highlights:** Subnet calculation, Save calculated networks, Binary and hex display, Network address ranges, Broadcast IP addresses, Study aid for networking exams

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove Ads | $4.99 | one-time |

**What reviewers like**

- 👍 Convenient and simple interface
- 👍 Practical and useful tool
- 👍 Saves locations and provides needed information
- 👍 Smart layout
- 👍 Great use of sliding octets for real-time effects

**What reviewers complain about**

- 🐛 Interface needs work
- 🐛 Text in subnet netmask field too large
- 🐛 Last octet not visible
- 🐛 No apparent way to enlarge field or change text
- 🐛 No landscape mode for iPad Pro

**Reported bugs**

- Text in subnet netmask field too large, last octet not visible
- Values truncated, cannot view full values
- Subnet mask and IP addresses truncated
- Cannot read all data
- Numbers truncated on iPhone 5s

**Requested features**

- Export option to share saved subnets
- Pay to remove ads
- Landscape mode for iPad Pro
- Update for visualising or adjusting screen on iOS 9
- Ability to type netmask


## Frequently asked questions

### Is Subnet Mask Calc free?

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

### Is Subnet Plus free?

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

### Which has better reviews, Subnet Mask Calc or Subnet Plus?

Subnet Plus is rated higher. Subnet Mask Calc averages 2.4 out of 5 from 23 ratings, while Subnet Plus averages 4.7 from 57 ratings.

### Do Subnet Mask Calc or Subnet Plus have ads?

Both Subnet Mask Calc and Subnet Plus show ads.

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

Subnet Mask Calc ships an update every 5 months, and Subnet Plus monthly. Most recently, Subnet Mask Calc was updated on October 23, 2026 and Subnet Plus on October 24, 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.*