Best apps like CIDR Calc

10+ similar apps compared and reviewed

4.4 avg rating
10 free apps
Updated September 2026

Looking for something like CIDR Calc? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to CIDR Calc

CIDR#1

CIDR by ao-system, Inc.

CIDR Subnet calculator
Editor's Choice
🔧 Utilities
5.0(1 ratings)
FreeIn-App Purchases
CIDR screenshot 1
CIDR screenshot 2
CIDR screenshot 3
CIDR screenshot 4

This utility calculates IP address ranges from an IP address and subnet mask. It supports IPv4 calculations, including prefix display, address range counts, and bit notation. Useful for quick CIDR notation checks and subnet mask conversions.

4.6😊(54 ratings)
FreeAdsIn-App Purchases
Subnet Plus: Subnet Calculator screenshot 1
Subnet Plus: Subnet Calculator screenshot 2
Subnet Plus: Subnet Calculator screenshot 3
Subnet Plus: Subnet Calculator screenshot 4
Subnet Plus: Subnet Calculator screenshot 5
Subnet Plus: Subnet Calculator screenshot 6

Calculate IP subnets with ease on your iPhone or iPad. This tool helps visualize binary and hex information for subnets, aiding in network studies and professional calculations. Save your calculated networks for future reference.

What We Love

  • 👍 Convenient and simple interface
  • 👍 Practical and useful tool
  • 👍 Saves locations and provides needed information
  • 👍 Smart layout
  • 👍 Great use of sliding octets for real-time effects
  • 👍 Well-designed subnet calculator
  • 👍 Binary display is togglable
  • 👍 Ability to save and recall subnets
  • 👍 Useful and professional conversion tool
  • 👍 Robust and complete tool
  • 👍 Data is accurate
  • 👍 Great helper for math stuff
  • 👍 Easy calculator, never disappoints
  • 👍 Fully satisfies needs
  • 👍 Great for sysadmins
  • 👍 Helpful for system administrators
  • 👍 Simplified subnetting
  • 👍 Unusual and unique calculator with perfect interface
  • 👍 Works consistently
  • 👍 Good for network administrators
  • 👍 Fast, good looking, and powerful
  • 👍 Normal subnet calculator
  • 👍 Handy calculator
  • 👍 Trusted, works correctly
  • 👍 Easy app for newbies
  • 👍 Accurate data and convenient UI
  • 👍 No ads (mentioned by one user)
  • 👍 Easy to use and informative
  • 👍 Calculation for number of subnets is correct (contradicted by another user)
  • 👍 Love the binary display
  • 👍 Simple UI, easy to use
  • 👍 Awesome, fast, and simple
  • 👍 Useful and helpful app, performs well
  • 👍 Works as stated
  • 👍 Great UI and features
  • 👍 Helpful for studying CCNA
  • 👍 Good for learners
  • 👍 Handy for on-the-fly calculations
  • 👍 Invaluable tool for Cisco instructors
  • 👍 Love this app, use it all the time
  • 👍 Simple, does what it's supposed to
  • 👍 Nice, very good app
  • 👍 No fuss, just works
  • 👍 Educative, good for networking students
  • 👍 Brilliant, simple and effective
  • 👍 Very helpful for studying Cisco CCNA
  • 👍 Clean and easy to read iPad interface
  • 👍 Toggleable binary and hex output
  • 👍 Extremely useful for on-the-go engineers
  • 👍 Very necessary app, convenient and helpful
  • 👍 Simple way to calculate networks
  • 👍 Works fast and perfectly well
  • 👍 Convenient and clear interface, easy to use
  • 👍 Real help with work and study
  • 👍 Cool, like it
  • 👍 Saves calculated networks, helps with study
  • 👍 Boyfriend is pleased, helps him a lot
  • 👍 Handy tool for learning/studying
  • 👍 Nice touch being able to save calculations
  • 👍 Just what I've been looking for

Room to Improve

  • 🐛 Interface needs work
  • 🐛 Text in subnet netmask field too large
  • 🐛 Last octet not visible
  • 🐛 No apparent way to enlarge field or change text
  • 🐛 No landscape mode for iPad Pro
  • 🐛 Calculation for number of subnets is not correct (mentioned by one user)
  • 🐛 Values are truncated with no apparent way to view full values
  • 🐛 Subnet mask truncated, cannot be read
  • 🐛 IP addresses truncated
  • 🐛 Cannot read all data
  • 🐛 No way to type netmask
  • 🐛 Numbers truncated on iPhone 5s
  • 🐛 Fields populated by app cannot be expanded
  • 🐛 Screen cannot fit full mask on iPad
  • 🐛 Needs update for iOS 9 screen visualization/adjustment
  • 🐛 Ads are present (mentioned by multiple users)
  • 🐛 Slow (mentioned by one user)
  • 🐛 Visual interface looks really poor (mentioned by one user)
Subnet Calculator +#3

Subnet Calculator + by Steven Eppler

Simple Subnet Calculations
Worth Considering
🔧 Utilities
4.0(7 ratings)
FreeIn-App Purchases
Subnet Calculator + screenshot 1
Subnet Calculator + screenshot 2
Subnet Calculator + screenshot 3

This utility app simplifies network calculations for professionals and students. It offers tools for IPv4 and IPv6 subnetting, including live CIDR sliders and subnet splitting. Results can be easily shared or copied.

More apps like CIDR Calc

4
Simple Subnet Calc
Simple Subnet Calc
Simple Subnet Calc
by Diogo Andre Assumpcao
Free

This utility quickly calculates IPv4 and IPv6 subnets with a clean interface. It's designed for network professionals and students needing fast, accurate subnetting tools on their iPhone.

IPv4 subnettingIPv6 subnettingClean interface
🔧 Utilities
(1)
free
5
IPv4 Subnet Calculator
IPv4 Subnet Calculator
IPv4 Subnet Calculator
by Daniel Nogueira
Free

This utility simplifies IPv4 subnet calculations for network professionals and students. Quickly obtain detailed subnet information like network address, broadcast address, and host ranges by entering an IP address and CIDR or subnet mask.

Easy-to-use interfaceDetailed subnet informationSupports CIDR and subnet mask input
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6
Subnet Mask Calc
Subnet Mask Calc
Subnet Mask Calc
IPv4 Calculator
Free

This free utility app quickly calculates subnet masks and wildcard masks for IPv4 networks. It's designed for IT professionals and students to simplify complex networking tasks and aid in certification preparation, offering offline functionality.

Lightning-fast subnet calculationsOffline network connectivityCalculates IP and wildcard masks
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7
easy Subnet Calculator
easy Subnet Calculator
easy Subnet Calculator
Easily calculate your subnet
Free
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Subnet Calculator 192
Subnet Calculator 192
Subnet Calculator 192
IP CIDR Subnet Calculator Tool
Free
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9
IP Calcpad
IP Calcpad
IP Calcpad
by Tadayoshi Fujiki
Free
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About Subnet Mask
About Subnet Mask
About Subnet Mask
Subnet mask Calculator.
Free

This utility tool calculates subnet masks based on IP and subnet inputs. It supports both IP and CIDR formats, determines class-based network numbers, and saves previous calculations for easy access. Users can also check the class of any IP address.

Subnet mask calculationIP and CIDR format supportClass-based network number calculation
🔧 Utilities
(1)
ad-supported