# SubnetMaster > The ultimate IPv4/IPv6 subnet calculator, VLSM network designer & CCNA tutor. Canonical page: [https://chrome-stats.com/d/com.cannolishellstudios.subnetmaster](https://chrome-stats.com/d/com.cannolishellstudios.subnetmaster) ## Overview - **ID:** `com.cannolishellstudios.subnetmaster` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Cannoli Shell Studios - **Category:** TOOLS - **Downloads:** 491 - **Version:** 1.1.6 - **Last updated:** 2026-03-29 - **First published:** 2026-03-29 - **Publisher country:** US - **Size:** 51 MB - **Data as of:** 2026-09-15 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.cannolishellstudios.subnetmaster) - **Privacy policy:** [https://cannolishellstudios.github.io/subnet-privacy/](https://cannolishellstudios.github.io/subnet-privacy/) ## Description SubnetMaster is the ultimate network design toolkit built specifically for network engineers, IT administrators, and cybersecurity students.

Whether you are deploying a massive enterprise network, configuring a home lab, or studying for your CCNA and CompTIA Network+ exams, SubnetMaster delivers lightning-fast, accurate IP calculations in a beautiful, intuitive dark-mode interface.

Stop wasting time doing binary math by hand. SubnetMaster handles everything from standard IPv4/IPv6 calculations to complex Variable-Length Subnet Masking (VLSM) architectures, ensuring your network is efficient and conflict-free.

🚀 CORE FEATURES:

📊 Advanced Subnet Calculator
• Full support for both IPv4 and IPv6.
• Instantly calculate Network IDs, Broadcast Addresses, Subnet Masks, Wildcard Masks, and Usable Host Ranges.
• Interactive CIDR slider to adjust prefix lengths on the fly.
• Deep-dive Binary Analysis and Bit Structure visualizations to see exactly how your network is divided under the hood.

🏗️ VLSM Designer (Variable-Length Subnet Masking)
• Say goodbye to wasted IP space. Input your base network and the exact number of hosts needed for different departments (Sales, IT, IoT, etc.).
• SubnetMaster automatically calculates a perfectly optimized, overlapping-free layout.
• View your address space utilization via visual pie charts and usage bars.

🗄️ FLSM Calculator (Fixed-Length Subnet Masking)
• Need to divide a network into equal parts? Type in your base network and desired number of subnets.
• Instantly generate a perfectly portioned routing table with first/last hosts and broadcast addresses.

🎓 Interactive CIDR Training Module
• Master subnetting in your head and ace your IT certification exams!
• Built-in quiz engine with randomized questions on CIDR-to-mask conversions, wildcard masks, usable host counts, and network boundaries.
• Choose between Beginner, Intermediate, and Advanced difficulties.
• Track your progress, view your accuracy stats, and build your practice streak.

📤 Export & Share (Pro Feature)
• Export your generated VLSM and FLSM network designs in a single tap.
• Copy to clipboard, or share via Plain Text, CSV (for Excel/Google Sheets), or JSON formats for easy network documentation.

WHO IS SUBNETMASTER FOR?
• Network Engineers & Architects: Quickly design routing tables and deploy flawless VLSM network architectures.
• IT Students: The absolute best companion for CCNA, CCNP, CompTIA Network+, and CompTIA Security+ exam prep.
• System Administrators: Rapidly double-check IP boundaries, wildcards, and broadcast addresses for firewall rules and ACLs.

Upgrade your IT toolkit and design networks with total confidence. Download SubnetMaster today! ## Rankings - #1,390,886 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.INTERNET` - `android.permission.SYSTEM_ALERT_WINDOW` - `android.permission.VIBRATE` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.cannolishellstudios.subnetmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [SubnetCalc: IPv4 & IPv6](https://chrome-stats.com/d/com.antotech.ipsubnetcalc) — 516 users - [NetSubnet Toolkit: VLSM/CIDR](https://chrome-stats.com/d/com.vlsm) — 19,985 users - [Subnet Calculator](https://chrome-stats.com/d/com.xerobi.subnetcalculator) — 122 users - [Subnet / VLSM Calculator](https://chrome-stats.com/d/com.codinlife.aioipcalculator) — 14,587 users - [SubNetter - IP VLSM Calculator](https://chrome-stats.com/d/me.shakhawat.subnetter) — 2,959 users - [NetMaster](https://chrome-stats.com/d/com.netmaster.app) — 110 users - [SubnetMate](https://chrome-stats.com/d/com.seliot.subnetmate) — 10 users - [Subnet Tools](https://chrome-stats.com/d/ly.spos.subnettools) — 3 users - [Subnet Ninja: IP Calculator](https://chrome-stats.com/d/com.subnetninja) — 173 users - [Subnet Calculator](https://chrome-stats.com/d/com.lcyu.subnetcalculator) — 531 users - [Kalkulator Subnetting](https://chrome-stats.com/d/com.qodrimardan.subnetcalculator) — 16 users - [SubnetBuddy](https://chrome-stats.com/d/com.vibecmd.subnetbuddy) — 5 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.cannolishellstudios.subnetmaster)