# NetCalc Pro – Network Lab — IP, subnet & VLSM calculator

> IP, subnet & VLSM calculator (iPhone/iPad app by Emanuele Spagnoli.)

- Source: https://appshunter.io/ios/app/netcalc-pro-network-lab/id6823228406 (this page in markdown: same URL + `.md`)
- Developer: [Emanuele Spagnoli](https://appshunter.io/developer/1849620354)
- Category: Utilities, Education
- Price: Free
- Age rating: 12+
- Requires: iOS 17.0 · 9 MB
- Languages: American English, Italian
- Released: 2026-10-16
- Data updated: 2026-10-18

## What is NetCalc Pro?

NetCalc Pro works out a network's addressing plan, generates the commands to configure routers and switches, and checks that everything adds up before you power on the lab.

It is built for networking students, at school, at university or preparing for a certification, and it works just as well for anyone who deals with IP addresses: technicians and sysadmins planning an install, teachers checking an exercise, hobbyists tidying up their home network. Explanations are there when you need them and stay out of the way when you don't.

CALCULATE
• IPv4 calculator with four ways to enter an address, and an IPv6 calculator with compression, prefixes, subnetting, and EUI-64.
• Equal-size subnetting and VLSM, with networks sorted largest first.
• Color-coded binary view that separates network and host bits, and a map of the used address space.

CONFIGURE
• Cisco IOS-style commands for interfaces, static routes, OSPF, RIPv2, EIGRP, VLANs and 802.1Q trunks, DHCP, standard and extended ACLs, NAT/PAT, and basic hardening.
• Import an existing running-config and find it in your project.

PROJECTS AND CHECKS
• Organize your work into projects with devices and interfaces, with search, duplication, and undo.
• The checker finds overlapping subnets, duplicate or unusable addresses, unreachable next hops, networks missing from OSPF, and DHCP gateways outside the pool.

LEARN
• A 21-chapter networking guide, from how a network works to dynamic routing, covering subnetting, VLSM, VLANs, DHCP, NAT, ACLs, firewalls, IPv6, and Cisco IOS commands, with worked examples.
• A checklist to go from plan to lab, and an exam brief worked through step by step.
• A searchable glossary and contextual explanations next to the results.
• Beginner mode with more help, Expert mode when you want less.

EXPORT AND SHARE
• Plans and projects as PDF, CSV, or text, or shared directly.
• Actions for Shortcuts and Spotlight.

ON IPHONE, IPAD, AND MAC
One app for all your devices, with no in-app purchases or ads. Menus and keyboard shortcuts on the Mac. Projects and settings sync through iCloud if you want. English and Italian, light or dark theme, and an accent color of your choice.

YOUR PRIVACY
No account, no tracking: calculations run on your device, and your projects stay yours, on the device and, with sync on, in your private iCloud.

Cisco and Cisco IOS are trademarks or registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and other countries. NetCalc Pro generates commands in Cisco IOS syntax; it is not developed, sponsored, or endorsed by Cisco and is not affiliated with Cisco. Other trademarks are the property of their respective owners.

## Is NetCalc Pro safe?

Not enough ratings yet to assess NetCalc Pro.

## Is NetCalc Pro legit?

NetCalc Pro – Network Lab appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for NetCalc Pro is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-16

No release notes.

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All apps by Emanuele Spagnoli: https://appshunter.io/developer/1849620354

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-18.*