# Subnet Plus: Subnet Calculator — user reviews > 74 indexed App Store user reviews of Subnet Plus by Ted Trentler, rated 4.70/5 from 55 ratings. - Source: https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668/reviews - App overview in markdown: https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668.md - Rating breakdown: 5★ 43 · 4★ 8 · 3★ 2 · 2★ 1 · 1★ 1 ## Newest reviews (16 of 74) ### 4/5 — Buena app *2016-09-27, version 1.6* Buena app ### 4/5 — Good calc *2016-05-23, version 1.5* The user interface looks really poor but the app does what it claims to do flawlessly. The data is absolutely accurate ### 4/5 — good *2016-05-22, version 1.5* This is a really easy calculator that never disappoints me. Good app to cope with the calculations ### 4/5 — Subnet calc *2016-05-22, version 1.5* I've been using this app lately and it fully satisfies all my needs👌🏼 ### 5/5 — It's a must-have *2016-05-21, version 1.5* This app has simplified everything for me in terms of subnetting. The data is 100% accurate ### 5/5 — 5 *2016-05-21, version 1.5* very unusual and really uniq calculator with perfect interface:) ### 4/5 — good *2016-05-21, version 1.5* Fine subnet calculator. Slow but works consistently. Which is all I needed. Thanks. ### 5/5 — Good! *2016-05-20, version 1.5* Very useful and informative program in capable hands. I am satisfied with it. Thank you! ### 5/5 — Good *2016-05-19, version 1.5* App looks good and useful in the right hands ### 4/5 — Simple, yet effective. *2016-05-19, version 1.5* This app is amazing! Fast, good looking and powerful. The only complain is ADs, but I can handle that as the app is the best you can find on AppStore. ### 5/5 — :) *2016-05-19, version 1.5* Finally I found a normal subnet calculator and it works consistently. My brother asked me to find for him something similar. He is learning subnetting and wants to be a good IT-specialist. I think this app will satisfy him. ### 5/5 — Great *2016-05-19, version 1.5* This is very handy calculator. I often use Subnet Plus in my work. ### 5/5 — Trusted *2016-05-19, version 1.5* There are no real professional calculator apps. They are almost all fakes full of ads. This one works! If you need something to subnet calculations keep calm and get this one. ### 5/5 — Great *2016-05-18, version 1.5* Don't rush to make conclusions before removing the application, it may be useful to many users ### 4/5 — Cheers *2016-05-18, version 1.5* An easy app for newbies in the sphere such as myself. Accessable and easy. Cheers. ### 5/5 — Recommended *2016-05-18, version 1.5* There’re a few subnet calcs on the AppStore but all of them calculate badly and have ugly interfaces. This one is different and deserves 5 stars from me. The data is accurate and UI is convenient. Will keep it on my iPhone ## Most critical reviews (10 lowest-rated) ### 1/5 — Waste *2015-11-07, version 1.2* All values are truncated with no apparent way to view the full values. ### 1/5 — Can't read the text in the third octet. *2015-10-28, version 1.2* App would be awesome but you can't read all the data, also there is no way to type the netmask. ### 1/5 — useless *2015-09-30, version 1.2* Given the size of my iPad screen it can't fit a full mask of 255.255.255.255 on the screen ### 2/5 — Interface needs work *2019-12-26, version 1.6* The text in the subnet netmask field was so large (bold) that the last octet was not visible. No apparent way to enlarge the field or change the text. Free is fine as long as it still works. ### 2/5 — Truncated fields *2015-11-01, version 1.2* The subnet mask is truncated and cannot be read in its entirety. The same applies true for the IP addresses. This happens on both my iPhone and iPad. If these problems could be corrected, this would be a great application, but as it stands now, it is not so useful to me. ### 3/5 — Does this work for non-class C networks? *2016-11-19, version 1.6* I can't get the proper number of subnets to show in a class A network. ### 3/5 — Max Subnets needs work *2016-01-13, version 1.5* Calculation for number of Subnets is not correct Subnets: /25 = 2 Subnets .0 & .128 /26 = 4 Subnets Block size 128 64 32 16 Mask bits. 1. 2. 3. 4 # Subnets. 2. 4. 8. 16 Easy Subnet calculation: 2^(number of mask bits) /25 =1 mask bit for Class C 2^1=2 Subnets /26=2 mask bits for class C 2^2=4 Subnets ### 3/5 — iPhone 5s view - numbers truncated *2015-10-04, version 1.2* I cannot expand the fields that are populated by the app when given the IP address. -2 stars for letting me believe that this was a "completed app". ### 4/5 — It’s good *2020-03-04, version 1.6* Works good and looks clean. Would like to see an export option to share saved subnets with team members. ### 4/5 — No landscape? *2018-09-04, version 1.6* Landscape would be great for iPad Pro use. Even with black bars on the sides like a 90’s TV show....other than that its great. ## Most praised reviews (10 highest-rated) ### 5/5 — this is what you were looking for *2019-06-19, version 1.6* convenient and simple interface ### 5/5 — Practical and most useful *2018-09-14, version 1.6* For iPhone...this is the most useful subnet tool used. Saves locations and gives you all the information you need in one page. ### 5/5 — Costs ads - free otherwise *2016-12-14, version 1.6* Smart layout on my iPhone 5S. I would gladly pay a couple of bucks to remove the ads. Great use of sliding /# octets to reveal real time the effects of subnetting with network and host ranges displayed dynamically. Please add pay to remove ads, I like the app itself. ### 5/5 — Great app *2016-09-03, version 1.6* Well designed subnet calculator. ### 5/5 — Great Subnet Calculator *2016-07-04, version 1.6* There are a few subnet calculators on the App Store. I like this one the best because of the binary display that can be toggled on and off as well as the ability to save subnets and recall them later. ### 5/5 — 5 stars *2016-05-28, version 1.5* This is an amazing conversion tool. It is an useful and professional. Great for network administrators. Good job! ### 5/5 — Robust *2016-05-27, version 1.5* Seems to be a very complete tool ### 5/5 — Wow *2016-05-23, version 1.5* I have never used such subnet calc apps on iPad. Great helper for some special maths stuff thanks ### 5/5 — Great for sysadmins *2016-05-21, version 1.5* I work with 10 networks all around the city and can't remember all addresses, subnets, specific info. And this app helps me to get it when I need it. ### 5/5 — Helpful *2016-05-21, version 1.5* I started working as system administrator and this app helped me to get the full information about all hosts, routers in a fast and simple way. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-24.*