Subnet Calc is a subnet / ip calculator designed to help network administrators with the time consuming effort of remembering all the subnets that they administer. It will show all details relevant to a subnet, given an IP address and subnet in CIDR notation.
Please feel free to leave comments here if you have used my application and have found it useful – I would very much like as much feedback as possible.
News
- 12/01/2009 – Subnet Calc is mentioned on Softpedia.
- 10/01/2009 – v1.2 released
- 28/11/2008 – v1.1 released
- 20/11/2008 – v1.0 released
- 12/11/2008 – Work has already begun on the next version. This is going to include a simple way to save subnet definitions which will persist between sessions and will also automatically backup with a usual iPhone / iPod backup. Other features may also appear if I can get them ready in time.
- 07/11/2008 – New logo! Check it out below. This will be appearing in future versions.
- 06/11/2008 – Subnet Calc accepted into the app store

Dear Mr. Galloway,
my name is Martin Behrendt, I am a product manager of http://www.apprupt.com. We would like to integrate your app into a number of websites that we partner with.
We are currently focusing on the European market and I think especially Subnet Calc and QuickPass could do very well there.
We deliver a small rev-share to our partners in exchange for their reach. There are several sites I could imagine your apps being offered at.
I could not find any other way to contact you so I am purposely not stretching this email to lengths, although I would surely be glad to explain our company in more detail to you.
Let me know if this sounds interesting enough for you to further communicate.
Also, check out http://www.apprupt.com for more information.
Would be great to hear back from you!
Best,
Martin Behrendt.