# Subnet Mask vs NetBuddy IP Subnet Calculator

The clearest difference is price: Subnet Mask at Free against NetBuddy IP Subnet Calculator's $1.99. NetBuddy IP Subnet Calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Subnet Mask is free to download; NetBuddy IP Subnet Calculator costs $1.99 up front. Subnet Mask sells 1 one-off in-app purchase. NetBuddy IP Subnet Calculator asks for nothing beyond the download.

Subnet Mask ships an update every 6 months, NetBuddy IP Subnet Calculator every 5 months. The most recent releases landed on November 1, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Subnet Mask | NetBuddy IP Subnet Calculator |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.6 (31 ratings)](https://appshunter.io/ios/app/subnet-mask/id580727679/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 26.0 | **18.2** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Furuya](https://appshunter.io/developer/503779747) | [Rick Bodnar](https://appshunter.io/developer/1712763175) |

## What reviewers say

### Subnet Mask

[App page](https://appshunter.io/ios/app/subnet-mask/id580727679)

This app provides a quick way to calculate subnet masks and host addresses. It features a keypad for CIDR notation and allows for manipulation of keys via swipe gestures, functioning like a slider. It can also be used to determine wildcard masks and the number of addresses.

**Highlights:** Subnet mask calculation, Host address calculation, CIDR notation keypad, Swipe key manipulation, Wildcard mask calculation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |


### NetBuddy IP Subnet Calculator

[App page](https://appshunter.io/ios/app/netbuddy-ip-subnet-calculator/id6743581698)

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

**In-app purchases:** none


## Frequently asked questions

### Is Subnet Mask free?

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

### Is NetBuddy IP Subnet Calculator free?

NetBuddy IP Subnet Calculator costs $1.99, with no in-app purchases.

### Do Subnet Mask or NetBuddy IP Subnet Calculator have ads?

Subnet Mask shows ads; NetBuddy IP Subnet Calculator does not.

### Which is updated more often, Subnet Mask or NetBuddy IP Subnet Calculator?

Subnet Mask ships an update every 6 months, and NetBuddy IP Subnet Calculator every 5 months. Most recently, Subnet Mask was updated on November 1, 2026 and NetBuddy IP Subnet Calculator on October 21, 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.*