Subnet Calc

Subnet Calc

By Swipe Stack Ltd

  • Category: Business
  • Release Date: 2008-11-20
  • Current Version: 2.5
  • Adult Rating: 4+
  • File Size: 8.17 MB
  • Developer: Swipe Stack Ltd
  • Compatibility: Requires iOS 8.0 or later.
Score: 3.5
From 163 Ratings


Subnet Calc is a subnet / ip calculator designed to help network administrators who need to remember details about the various subnets which they administer. You can select an IP and a subnet in CIDR notation and Subnet Calc will tell you all the details about the subnet, including its class and even whether or not the IP is in the loopback / private ranges. There is also a PRO version called Subnet Calc Pro. Be sure to check it out for more advanced features such as an organiser and the ability to find a subnet based upon a given set of IPs.



  • Unusable now

    By MH1864738
    Have used this for a few years now but latest version has rendered the app completely unusable, it continuously redirects to the App Store
  • Unusable

    By questar03
    The amount of advertising that this redirects you to make this app completely unusable. You can't even enter the 1st three numbers of an IP address before you are redirected to an advert. Close screen and a second later you are redirected again. Don't wast your time with this app. It's useless
  • Interstitial ads make the free version unusable

    By Fredd500
    While ads have their place in free software (everyone deserves recompense for their hard work) the level of advertising needs to be appropriate to the app and above all else it must work despite them. I've used this app for years, it does (or did) what I need(ed) it to, but recently the level of interstitial ads has made this unusable. If the developer is being paid per impression, then it is clear this app is intended to be useless and should be removed from the store.
  • Waste of time

    By MDragon
    Can't even make one click without it going through to App Store, don't even bother
  • Shame on you!

    By Neo2810
    I've been using this app for years, but since the latest version, the App Store pops up every few seconds trying to flog you crappy apps. Shame on you guys for getting greedy and trying to force your users into upgrading to pro!! Plenty of other free subnet calcs....
  • Deleting this app

    By bkby
    Keeps opening up the App Store every few minutes. When entering up network and mask the result shows an old result. Will delete and use my head instead
  • One annoying flaw...

    By Jewbar
    Well presented app, but the max subnet calculation is incorrect, which is pretty fundamental. Please fix!
  • Fix please

    By Easywelsh
    Just closes after opening on my iPad mini
  • Great app! Free too!

    By Thirteenth Step
    I'm a uni graduate starting to climb the cisco certification ladder and this app has been great for checking my manual subnetting required for the exam.
  • My mate!

    By Cbflip
    It has been my best mate this week setting up firewalls. I cannot remember binary and don't have a pad of paper to work it out!!