# Subnet Mask Calc

> IPv4 Calculator

Canonical page: [https://chrome-stats.com/d/id406375326](https://chrome-stats.com/d/id406375326)

## Overview

- **ID:** `id406375326`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** John Rouda
- **Category:** Utilities
- **Rating:** 2.40 / 5 (23 ratings)
- **Version:** 3.0
- **Last updated:** 2025-07-17
- **First published:** 2010-12-15
- **Size:** 3.29 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/subnet-mask-calc/id406375326)
- **Website:** [https://www.johnrouda.com/](https://www.johnrouda.com/)
- **Privacy policy:** [https://johnrouda.com/2022/05/03/privacy-policy](https://johnrouda.com/2022/05/03/privacy-policy)

## Description

Designed for IT engineers seeking swift solutions, this tool is your go-to for effortlessly unraveling network IPs and wildcard masks.

Transform your networking experience with our lightning-fast Subnet Mask Calculator! Unleash the power of seamless calculations even without network connectivity. Dive into a world of convenience, where precision meets simplicity – and it's absolutely free!

Designed for IT engineers seeking swift solutions, this tool is your go-to for effortlessly unraveling network IPs and wildcard masks. It's the ultimate companion for professionals, making complex tasks a breeze.

But that's not all – if you're a networking enthusiast or a student aiming for excellence in Network+ or CCNA certifications, our Subnet Mask Calculator is an invaluable learning aid. Verify your subnetting mastery on the go, ensuring accuracy and boosting your confidence in every step of your networking journey.

Elevate your networking game with our user-friendly, free-to-use Subnet Mask Calculator. Download now and experience the efficiency that sets you apart!

## Rankings

- #306,450 — Overall

## Review summary

Reviewers largely see Subnet Mask Calc as a free app that covers essential subnet information and can be useful for CCNA study. However, several users report serious stability issues (crashes on iOS7 and overall unusability) and a poor user interface with wasteful layout. The core functionality is appreciated, but reliability and usability are significant concerns that affect overall value.

### Pros

- Free to use (appears in multiple reviews).
- Provides basic subnet calculation (broadcast address, first/last address, mask bits, number of hosts).
- May be suitable for CCNA study / quick reference.

### Cons

- Stability and performance problems: crashes on iOS7 and reports of the app being unusable.
- Poor and unattractive user interface: ugly / bad GUI and wasted screen space.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id406375326)