# Subnetting Practice Master > Practice subnetting and reverse subnetting for network certification exams. (iPhone/iPad app by enrique caballero.) - Source: https://appshunter.io/ios/app/subnetting-practice-master/id891180824 (this page in markdown: same URL + `.md`) - Developer: [enrique caballero](https://appshunter.io/developer/891180827) - Category: Education, Utilities - Price: $4.99 - Rating: 4.47/5 from 34 App Store ratings · 12 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 17 MB - Languages: English - Released: 2014-06-29 - Data updated: 2026-08-05 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/subnetting-practice-master/id891180824/reviews.md ## What is Subnetting Practice Master? If you are pursuing the CCNA / CCNP Certification, you should be able to resolve a Subnetting / Reverse Subnetting Problem in a minute or less. This application will measure your Subnetting Skills!!! Features: - Over 100+ Questions - Numerical Keyboard with Submit button for faster response. - 3 Training Modes: EASY, HARD & MASTER! - Timer: 1 Minute per Question! (Hard & Master Modes) - Help Button Available: Cheat, Powers & Binary! - Why? Button with an explanation of the question. - Why? Button is available on EASY Mode Only. - Basic Tutorial. - Powers & Binary Buttons available now after using the Cheat Button. - Layout Questions! - Score System, Answer 30 to get Rated! - Do you consider yourself good at Subnetting… Try the Master Mode! - No Ads, just pure Subnetting! PS: I have expended many weeks developing this app adding new features in order to worth every penny!, Thank You for your Support! ## Key features - Over 100 questions - Numerical keyboard - Three training modes - 1-minute timer per question - Help button with powers and binary - Explanation for questions - Score system ## Chart rankings - #186 in Top Paid · Education (US App Store) ## Recent user reviews (10 of 12) All indexed reviews: https://appshunter.io/ios/app/subnetting-practice-master/id891180824/reviews.md ### 5/5 — This will whip you into shape! *2022-03-31* Helpful when you want it to be, and ruthless when you need it to be. Bring a basic understanding of how subnetting works, and this app will help clarify, crystallize and habituate the mechanics in your mind. Like a strong wind will blow out a candle but fuel a fire, this app will bewilder the clueless and make gods of men. Or help a bit. ### 5/5 — Simple and just what you need *2022-02-10* I greatly appreciate the simplicity within the app. No frills. You are provided a host ipv4 address and a CIDR. You figure out the other computations. There is CIDR and subnetting practice. This app has truly helped me with being able to speed through the subnetting math. The explanations on how correct computations could use some extra detail, but it’s sufficient. Need to learn quick subnetting computation? This is your app. THANK YOU, Enrique! I’d love to see an IPv6 EUI-64 to solicited-node / MAC converter test! ### 5/5 — Good for Network+ and CCNA *2021-11-10* The answer explanations are my favorite. Good little app for learning subnetting. ### 5/5 — Well worth the money *2019-01-30* I struggle with advanced Subnetting and was waiting for someone to develop an app like this as it challenges what I know ( or what I think I know). I'm so pleased that someone has put clear thought and consideration into this app and it works great on so many levels! ### 5/5 — Great Program *2018-02-27* I was a little skeptical at first because there wasn't enough reviews for this to have a rating in the app store yet. I have to say Im glad I read the other user reviews and then took a chance. This is REALLY helping in assessing my subnetting studies. It is easy to use and very helpful in explaining how to answer the question and come to the correct conclusion. For me it was well worth the cost for such great tool. ### 5/5 — New version rocks! *2017-11-09* Updated app is very good. I really like the WHY button, very helpful. Thanks for fixing it up. I can tell Developer spent a great deal of time on this app. It works smooth and very helpful in learning subnetting. If you are trying to get your CCNA or other Cisco cert, you should purchase this app and practice, practice, practice! **Developer response:** Hello there, we have corrected a typo in an answer and reviewed all questions/answers to make sure it is a 100% correct. We have also added the WHY button which explain each question / answer accordingly. ### 5/5 — Good Update *2016-05-13* This app was missing the explanation on each question, now it have it 👍👍👍👍 ### 5/5 — Awesome *2016-05-13* Jeremy Cioara from CBT Nugget subnetting style, pretty nice update now with explanation on each question, well done! ### 5/5 — The perfect subnetting app finally!!! *2015-06-01* Just love it! This is my fist review ever on itunes after ages of using its apps and this is because you app my friend WORKS!!! using the Jeremy Ciara subnetting method and this app for my subnetting! This app rocks! It even reminded me of wild card masks, which I had completely pulverized in my mind, ha! ### 3/5 — Good questions but... *2015-04-28* The product is good, the questions, answers, and difficulty settings are all good, but there is an annoying flashing/flickering of the buttons when used on both the iPad and iPhone. ## Frequently asked questions about Subnetting Practice Master ### What is Subnetting Practice Master used for? Subnetting Practice Master is designed to help users improve their subnetting and reverse subnetting skills, which are crucial for CCNA and CCNP certifications. It provides a practice environment with timed questions and detailed explanations. ### How many questions are available in Subnetting Practice Master? The app features over 100 questions to provide ample practice for users. This variety ensures comprehensive coverage of subnetting concepts. ### What are the different training modes in Subnetting Practice Master? Subnetting Practice Master offers three training modes: EASY, HARD, and MASTER. These modes cater to different skill levels, allowing users to progress as they improve their subnetting abilities. ### Does Subnetting Practice Master have ads? No, Subnetting Practice Master is ad-free. The developer has stated that the app contains no advertisements, allowing for an uninterrupted learning experience. ### What is the price of Subnetting Practice Master? Subnetting Practice Master is a paid application, available for $4.99. This one-time purchase grants access to all features and content without further charges. ### On which devices can I use Subnetting Practice Master? Subnetting Practice Master is available for iPhone and iPad devices. It is designed to run on iOS platforms. ### How often is Subnetting Practice Master updated? The latest version of Subnetting Practice Master, version 6.12, was released on April 8, 2023. While specific update frequency isn't detailed, this indicates recent development and support. ### What is the age rating for Subnetting Practice Master? Subnetting Practice Master has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content. ## Version history (last 5 releases) ### 6.12 — 2023-04-08 - UI Adjustments for Newer Devices - Enhancements and Bug Fixes ### 5.5.5 — 2016-11-29 This app has been updated by Apple to display the Apple Watch app icon. - A few typos around the answers explanation (WHY? Button). - Some adjustments in the layout. ### 5.5 — 2016-06-29 - Tracking Last, Best and # of Completed Tests. - A few typos around the answers explanation (WHY? Button) reported. - Completed a better explanation (WHY? Button) for some questions. - Some adjustments in the layout. ### 5.0 — 2016-05-13 - Why? Button with an explanation of the question. - Why? Button is available on EASY Mode Only. - Basic Tutorial. - Powers & Binary Buttons available now after using the Cheat Button. - Some adjustments in the layout. ### 4.0 — 2016-04-27 - Customized Numerical Keyboard. - Submit button on Numerical keyboard for faster response. - Some adjustments in the layout. - I have fixed 1 true wrong answer reported: Wrong Answer: 10.16.10.15 Correct: 172.16.10.15 It was a typo on my end in the first octet. - I have reviewed all Questions/Answers several times. - Another CCNP reviewed them all as well, we are confident that they are 100% correct. ## Apps similar to Subnetting Practice Master | App | Rating | Price | Category | | --- | --- | --- | --- | | [Cisco (CBROPS) Exam 2026](https://appshunter.io/ios/app/cisco-cbrops-exam-2026/id1631892864) | 4.5 (2) | Free | Education | | [OSI Model with GotBotsss](https://appshunter.io/ios/app/osi-model-with-gotbotsss/id1631705683) | — | $1.99 | Education | | [Finding Slope Four Ways](https://appshunter.io/ios/app/finding-slope-four-ways/id1416761825) | — | $0.99 | Education | | [Learn Data Structures](https://appshunter.io/ios/app/learn-data-structures/id6446444404) | — | Free | Education | | [Learn Networking: CCNA & More](https://appshunter.io/ios/app/learn-networking-ccna-and-more/id1500565749) | 4.4 (26) | $1.99 | Education | | [Pocket CLI](https://appshunter.io/ios/app/pocket-cli/id956405354) | 3.6 (16) | $74.99 | Education | ## More apps by enrique caballero - [My First 2](https://appshunter.io/ios/app/my-first-2/id1177830474) All apps by enrique caballero: https://appshunter.io/developer/891180827 --- *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 2026-08-05.*