Description of App: 

This application allows you to easily calculate subnet, VLSM, and wildcard information based on IP address/mask values. It also has a save/load feature for commonly used subnets.

As described in the iTunes Store:

A powerfull and handy collection of must-have-tools for network administrators.


  • Subnet calculator
  • Vlsm calculator
  • Wildcard calculator

Apple Watch Support: 

Not Known



Free or Paid: 


Device(s) App Was Tested On: 


Accessibility Comments: 

AppleVis Editor Note: this app was submitted before Usability Ratings were introduced, so one has been chosen on the basis of the accessibility comments made by the original poster. If you have used this app, please post a comment to let us know if you agree with the Rating.Original Comments:
When double tapping on a text box (IP address) to input a value, VoiceOver doesn't usually auto focus to the keyboard for input though you hear the sound. Once you have double tapped on a text box, if you click near the bottom of the screen, VoiceOver should focus on a number on the keypad and you should be able to enter text.

VoiceOver Performance: 

VoiceOver reads most page elements.

Button Labeling: 

All buttons are clearly labeled.


There are some accessibility issues with this app, but it can still be used if you are willing to tolerate these issues and learn how to work around them.