Subnetting Practice vs Slash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Subnetting Practice
Master network subnetting with this educational app. It offers detailed tutorials and practice modules for CIDR and VLSM, providing clear explanations for each answer to enhance your learning.
- CIDR practice module
- VLSM practice module
- CIDR tutorial
- VLSM tutorial
- Detailed answer explanations
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Learn and Sharpen Subnetting. Best Subnetting Practice application with detail explanation of answer. Subnetting Practice has subnetting tutorials and practice module. Practice Modules: 1. CIDR Practice 2. VLSM Practice Tutorials: 1. CIDR Tutorial 2. VLSM Tutorial
Slash
This offline calculator quickly determines IP network details like network address, host ranges, and broadcast addresses. It supports various input formats and provides advanced information, including binary views and IPv6 compatibility. Designed for network professionals and students, it offers a streamlined way to perform subnet calculations without an internet connection.
- Offline subnet calculation
- Supports CIDR, bare address, or subnet mask input
- Calculates network, host, and broadcast addresses
- Pastes directly from network device output
- Provides wildcard mask and binary views
- Handles /31 and /32 subnetting
- IPv6 support
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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: https://tylerdix.com/slash/#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.
Screenshots
Verdict
The clearest difference is rating: Subnetting Practice at 4.4 against Slash's 3.7. Subnetting Practice also leads on ratings volume (10 vs 3) and iOS requirement (8.0 vs 18.0). Slash's advantage is review sentiment (100% vs 75%) and update cadence (every 8 days vs every 2 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Subnetting Practice holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews complicate that: 75% of Subnetting Practice's written reviews are positive against 100% of Slash's, so the app with the better star average is not the one people write more warmly about.
Subnetting Practice ships an update every 2 weeks, Slash every 8 days. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.
| Parameter | Subnetting Practice | Slash |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (10 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | 3 |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Rutul Patel | Tyler Dix |
Customer experience
Subnetting Practice
Slash
In-app purchases
Subnetting Practice
No in-app purchases
Slash
No in-app purchases









