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IP Calc

IP Calc

CIDR, VLSM and cloud subnets

1 ratings
16 reviews
🔧 Utilities
🔍 Reference
$4.99

Details

  • Released
  • Updated
  • July 28, 2026
  • September 30, 2026

Features

Developer

Paul Taylor
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📝2+ tags
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❓8 answered
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About

Easily plan network changes with this tool. Enter an IP address and use a slider to select a subnet mask, instantly calculating and displaying all subnet-related information on a single screen.

✓Instant mobile CIDR IPv4 calculations
✓Displays network and broadcast addresses
✓Calculates subnet and wildcard masks
✓Shows host range (HostMin and HostMax)
✓Determines Max Subnets and Hosts/Net
✓Previous/Next Subnet navigation
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What's New in IP Calc

2.0.2

September 30, 2026

• The calculator is more compact, so results, reserved addresses and the next network all fit without scrolling (depending on phone size) • A redesigned prefix slider with step buttons • Tighter layouts across the tools • Clearer wording throughout

More

User reviews

Most RecentHighest RatedLowest Rated

Best IP Calculator Out There

IP Calc is my favorite IP calculator. The updated interface is clean, and the networking/subnet planning tools are a lifesaver for my workflow. Thanks to the developer for the thoughtful improvements-great work!
.oO00Oo..oO00Oo.

Mask slider missing

After updating to iOS 8.3, mask slider is missing. When you start the app, it's there for s second, then disappears. This is a great app, please fix. Thanks!
NetCuriousNetCurious

CIDR not present

Agreed. Following update to 8.3 CIDR is no longer visible. After entering an IP, I can no longer specify the bits to the mask.
ls1826ls1826

CIDR Mask slider bar no longer visible

Up until the iOS 8.3 update, this was my IP calculator of choice. Basic calculator with CIDR slider provided 98% of my needs. Since 8.3, the slider bar is no longer visible, even though the functionality still exists.
bes1008okcbes1008okc

Great network calc

Every network admin should have this app.
DurcarDurcar
See 11 more reviews

FAQ

What is IP Calc?

IP Calc is a mobile application designed to help users quickly plan network changes by calculating subnet-related information instantly.

What kind of calculations does IP Calc perform?

IP Calc performs instant mobile CIDR IPv4 calculations, displaying network and broadcast addresses, subnet and wildcard masks, host ranges, and the maximum number of subnets and hosts per network.

Can IP Calc help me find adjacent subnets?

Yes, IP Calc features 'Previous Subnet' and 'Next Subnet' buttons, allowing you to quickly determine an entire range of network addresses.

What devices does IP Calc support?

IP Calc is supported on iPhone and iPod devices.

Is IP Calc free to use?

Based on the provided data, IP Calc is a paid application.

Does IP Calc have ads?

No, IP Calc does not contain advertisements.

How often is IP Calc updated?

IP Calc was last updated on July 28, 2026, with version 1.01, which includes state saving across restarts.

What is the age rating for IP Calc?

IP Calc has an age rating of +4.