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IP Keypad - Subnet Calculator

IP Keypad - Subnet Calculator

Subnet Calculator

141 ratings
8 reviews
With Ads
🔧 Utilities
📊 Productivity
Free
With Ads

Details

  • Released
  • Updated
  • February 28, 2012
  • April 11, 2026

Developer

Takahiro Furuya
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About

Calculate network, host, and broadcast addresses with a dedicated keypad. Supports classful and classless modes, with pickers for subnet mask and prefix length. Includes special-purpose address information based on RFC standards.

✓Dedicated keypad
✓Subnet mask and prefix length pickers
✓Network, host, and broadcast address calculation
✓Classful and classless modes
✓RFC 6890/5735 special-purpose address display
Show original description

What's New in IP Keypad

3.1.3

April 11, 2026

Minor improvements

User reviews

Most RecentHighest RatedLowest Rated

Nice Real Nice

Easy to use, fast, and this my first app that works smoothly.
Nice + nNice + n

Wonderful

Cool app
polarbear12Rpolarbear12R

Wildcard Mask

I just discovered this app today and I have to say it’s really handy. Suggestions: adding a wildcard mask to the list will make it a 5 star review for me. Great app
obinnan45obinnan45

Good App Needs Some Additional Features

Overall good but it should include a readout for number of subnets created. That’s important to know if you need to plan the number of network segments. Also a “would like to have” is to be able to switch the display to show the IP and subnet in binary so we can learn from it.
MjurrensMjurrens

No good for iPad.

Lacking large screen support and landscape mode for iPad.
RichBrew2RichBrew2
See 3 more reviews

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FAQ

What is IP Keypad's primary function?

IP Keypad is a subnet calculator designed to help users compute network, host, and broadcast addresses. It offers dedicated pickers for subnet masks and prefix lengths, supporting both classful and classless modes for comprehensive IP address management.

How does IP Keypad handle special-purpose IP addresses?

IP Keypad displays special-purpose IP addresses based on current RFC standards. For version 3.0.0 and later, it uses RFC 6890 (April 2013), and for versions 2.3.2 and earlier, it references RFC 5735 (January 2010).

What devices is IP Keypad available on?

IP Keypad is currently supported on iPhone devices. The app is designed for iOS users who need quick access to subnet calculation tools on their mobile devices.

How often is IP Keypad updated?

The latest version of IP Keypad is 3.1.2, last updated on February 26, 2026. This indicates a commitment to maintaining and improving the application with relevant features and compatibility.

What is the user rating for IP Keypad?

IP Keypad has received an excellent user rating of 4.7 stars based on 140 ratings. This high score suggests that users find the app reliable and valuable for their networking needs.

Is IP Keypad free to use?

Yes, IP Keypad is available for free. While the app itself is free to download and use, it does contain advertisements to support its development and maintenance.

What age rating does IP Keypad have?

IP Keypad has an age rating of 4+. This means the app is suitable for users of all ages and does not contain any content that would be considered inappropriate for children.

Can IP Keypad integrate with other networking tools?

While the description does not explicitly mention integrations with other networking tools, IP Keypad's core functionality as a subnet calculator allows for easy manual input of its results into other systems or reports.