---
title: "Slash - Subnet Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "An offline subnet calculator for CCNA, Network+, and anyone who works with IP networks day to day.  This is the original Slash - the calculator I built for myself so I could check subnetting in second"
---

# Slash - Subnet Calculator — United States
> CIDR, VLSM & IPv6 calculator

![Slash App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/2a/79/9e/2a799e4b-add1-2f39-94a0-03e5bb4252fb/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Tyler Dix](https://apptail.io/developer/tyler-dix-NjJEbc)
**Category:** Education
**Rating:** 3.7/5 (3 ratings)
**Price:** Free
**Bundle ID:** com.dix.Slash
**Store:** Apple App Store
**Country:** United States
**Version:** 2.1 (released 2026-06-12)
**Original Release:** 2026-04-29
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6764183064)
**AppTail Page:** [https://apptail.io/app/slash-subnet-calculator-KEyz/united-states](https://apptail.io/app/slash-subnet-calculator-KEyz/united-states)

## Slash Description
An offline subnet calculator for CCNA, Network+, and anyone who works with IP networks day to day.

This is the original Slash - the calculator I built for myself so I could check subnetting in seconds instead of doing the math by hand every time. Type it in or paste it from wherever you copied it; Slash works out the rest, all on-device.

Features:
- Type or paste a CIDR (192.168.1.0/24), a bare address, or a subnet mask - Slash fills in the rest
- Network address, first and last host, broadcast, and where the next subnet starts
- Paste straight from Cisco IOS, ifconfig, or ipconfig output and it pulls the address and mask out for you
- Tap any value to copy it
- "More details" opens the wildcard mask, usable host count, and a bit-by-bit binary view
- Hand it just a mask and get the CIDR prefix, wildcard, and the hex netmask (the ifconfig / route-table style)
- /31 point-to-point (RFC 3021) and /32 handled the way they actually behave
- IPv6 when you need it, light or dark, Recents, optional haptics
- Fully offline. No accounts, ads, tracking, or subscriptions. Free.
- Shamelessly vibe coded using Fable 5; the subnet math lives in its own package and is hand-verified for accuracy

About me:
I'm a working network engineer and active CCNA, currently living in the beautifully warm state of Arizona.

Questions, feedback, or a result you can't explain? Email me any time - I'm responsive, and my email actually works.

Privacy: 

Slash is an independent tool, not affiliated with, endorsed by, or sponsored by Cisco Systems, Inc. or CompTIA, Inc. CCNA and Network+ are trademarks of their respective owners.

## Slash Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c6/d4/1d/c6d41d71-c9c7-eb91-0f8a-a6b777bf62f8/1-cidr-dark.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/26/6a/46/266a46b2-3b62-5fd6-7018-68daacb25e0e/2-binary-dark.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/20/ed/3c/20ed3c8e-cea2-b9f6-b19f-6289317fb19e/3-classA-dark.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9c/b7/6a/9cb76aa0-9d49-6faa-5bae-07228d5a362f/4-mask-hex-dark.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/47/62/11/47621169-2510-d1c1-9498-71f880f94afd/5-classB-light.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2b/d7/0c/2bd70c25-4ec2-7532-e85b-0293e0b9f497/6-p2p-light.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e9/06/1a/e9061ada-3c69-78f9-d397-878be7b3baf5/7-cgnat-light.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/78/5b/26/785b26e6-f34f-36d8-ca13-05efb5a056e3/8-subnet-light.png/1242x2688.png)

## Slash Rating Breakdown in United States
- 5 stars: 2 (67%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 1 (33%)

## Slash Reviews in United States

### ***** "Clean, useful"
Slick design and super helpful for practicing subnetting. Nothing gets in the way.
-- Longsko, 2026-05-14

[View all Slash reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)




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## Slash Available In
- [United States](https://apptail.io/app/slash-subnet-calculator-KEyz/united-states)
- [Canada](https://apptail.io/app/slash-subnet-calculator-KEyz/canada)
- [Australia](https://apptail.io/app/slash-subnet-calculator-KEyz/australia)
- [Azerbaijan](https://apptail.io/app/slash-subnet-calculator-KEyz/azerbaijan)
- [Belgium](https://apptail.io/app/slash-subnet-calculator-KEyz/belgium)
- [Brunei](https://apptail.io/app/slash-subnet-calculator-KEyz/brunei)
- [Egypt](https://apptail.io/app/slash-subnet-calculator-KEyz/egypt)
- [Spain](https://apptail.io/app/slash-subnet-calculator-KEyz/spain)
- [United Kingdom](https://apptail.io/app/slash-subnet-calculator-KEyz/united-kingdom)
- [Hungary](https://apptail.io/app/slash-subnet-calculator-KEyz/hungary)
- [India](https://apptail.io/app/slash-subnet-calculator-KEyz/india)
- [Italy](https://apptail.io/app/slash-subnet-calculator-KEyz/italy)
- [Japan](https://apptail.io/app/slash-subnet-calculator-KEyz/japan)
- [Kuwait](https://apptail.io/app/slash-subnet-calculator-KEyz/kuwait)
- [Kazakhstan](https://apptail.io/app/slash-subnet-calculator-KEyz/kazakhstan)
- [Lebanon](https://apptail.io/app/slash-subnet-calculator-KEyz/lebanon)
- [Nigeria](https://apptail.io/app/slash-subnet-calculator-KEyz/nigeria)
- [Netherlands](https://apptail.io/app/slash-subnet-calculator-KEyz/netherlands)
- [Nepal](https://apptail.io/app/slash-subnet-calculator-KEyz/nepal)
- [Philippines](https://apptail.io/app/slash-subnet-calculator-KEyz/philippines)
- [Poland](https://apptail.io/app/slash-subnet-calculator-KEyz/poland)
- [Russia](https://apptail.io/app/slash-subnet-calculator-KEyz/russia)
- [Singapore](https://apptail.io/app/slash-subnet-calculator-KEyz/singapore)
- [Slovakia](https://apptail.io/app/slash-subnet-calculator-KEyz/slovakia)
- [Tunisia](https://apptail.io/app/slash-subnet-calculator-KEyz/tunisia)
- [Türkiye](https://apptail.io/app/slash-subnet-calculator-KEyz/turkey)
- [Uzbekistan](https://apptail.io/app/slash-subnet-calculator-KEyz/uzbekistan)
- [United Arab Emirates](https://apptail.io/app/slash-subnet-calculator-KEyz/united-arab-emirates)
- [Vietnam](https://apptail.io/app/slash-subnet-calculator-KEyz/vietnam)
- [Argentina](https://apptail.io/app/slash-subnet-calculator-KEyz/argentina)

---

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