--- title: "Subnet Plus: Subnet Calculator - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Subnet Plus is a fast, beautiful subnet calculator for network engineers, sysadmins, and students — now completely rebuilt for iPhone and iPad. Type any IPv4 or IPv6 address and instantly see the net" --- # Subnet Plus: Subnet Calculator — United States > Network Toolkit ![Subnet Plus App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/f6/d8/63/f6d86318-0175-70c9-3943-dc04c6a414aa/AppIcon-0-0-1x_U007epad-0-1-85-220.png/400x400bb.png) **Developer:** [Ted Trentler](https://apptail.io/developer/ted-trentler-Ltdc) **Category:** Utilities **Rating:** 4.7/5 (55 ratings) **Price:** Free **Bundle ID:** com.trentlerconsulting.Subnet-- **Store:** Apple App Store **Country:** United States **Version:** 2.4 (released 2026-09-15) **Original Release:** 2013-10-30 **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id724663668) **AppTail Page:** [https://apptail.io/app/subnet-plus-subnet-calculator-mvje/united-states](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/united-states) ## Subnet Plus Description Subnet Plus is a fast, beautiful subnet calculator for network engineers, sysadmins, and students — now completely rebuilt for iPhone and iPad. Type any IPv4 or IPv6 address and instantly see the network address, broadcast, usable host range, subnet mask, wildcard mask, prefix length, total and usable hosts, IP class, and address type. A live prefix stepper lets you dial the mask up or down and watch every value update in real time. NETWORK CALCULATIONS • IPv4 and IPv6, auto-detected • Binary view with network/host bits color-coded • Visual address-space map PRO TOOLS • VLSM Designer — carve a network into right-sized subnets and save the plan • CIDR to subnet mask to wildcard converter • Subnet membership — is an address inside a network? • Range to CIDR, and supernet / aggregate • CIDR cheat sheet NETWORK UTILITIES • DNS Lookup — A, AAAA, MX, NS, TXT, CNAME, SOA, SRV, and reverse PTR — using your device's resolver or any IPv4/IPv6 DNS server you add • Ping — round-trip time and packet loss • Traceroute — see the path to any host • Path Monitor (Pro) — a live, MTR-style traceroute with per-hop packet loss and latency • Network Scanner (Pro) — find the active devices on your local network, their names, and open ports • Email Auth — check a domain's SPF, DKIM, and DMARC records SIRI, WIDGETS & APPLE INTELLIGENCE • Explain this — turn any subnet calculation or Email Auth report into a plain-English explanation, generated on-device by Apple Intelligence • Siri & Shortcuts — calculate a subnet, ping a host, check a port, or ask "What's my network?" by voice, and use the same actions in your own Shortcuts • Live Activities — follow Path Monitor and Network Scanner from the Lock Screen and Dynamic Island • Home Screen widget — pin any saved subnet, with a different subnet per widget SAVE & SYNC • Label and save subnets, VLSM plans, and lookups • Everything syncs across your devices with iCloud • Share and export your results Available in 45 languages. Remove ads with a one-time in-app purchase. ## Subnet Plus Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b4/7a/eb/b47aeb13-a7e7-2e26-e0e3-8689e193e6a4/iPhone_18_Pro-01-Calculate.png/1206x2622.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/64/ce/3a/64ce3a94-b5fc-9caa-4ed9-83a59e8db127/iPhone_18_Pro-02-Explain.png/1206x2622.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/dd/66/0f/dd660f3b-7395-0ac3-c3f6-02f9c604e484/iPhone_18_Pro-03-LiveActivity.png/1206x2622.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9c/95/7f/9c957fe5-f30c-e5d9-5e98-becc7cea7f9b/iPhone_18_Pro-04-Tools.png/1206x2622.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/90/b2/1a/90b21a86-3b8a-db52-f42d-104f11aaccd8/iPhone_18_Pro-05-Traceroute.png/1206x2622.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f4/88/a0/f488a07c-c6b4-3904-c930-14b479681fc1/iPhone_18_Pro-06-DNSLookup.png/1206x2622.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/37/1d/12/371d1211-6907-1ae7-4b27-eba04a96a016/iPhone_18_Pro-07-Library.png/1206x2622.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9c/86/25/9c862530-cccf-40cc-582b-99a65b79a2e6/iPhone_18_Pro-08-History.png/1206x2622.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e8/42/99/e842998f-ba78-079a-fd3f-8d9b42895459/iPhone_18_Pro-09-Settings.png/1206x2622.png) ## Subnet Plus Rating Breakdown in United States - 5 stars: 43 (78%) - 4 stars: 8 (15%) - 3 stars: 2 (4%) - 2 stars: 1 (2%) - 1 stars: 1 (2%) ## Subnet Plus Reviews in United States ### ****- "It’s good" Works good and looks clean. Would like to see an export option to share saved subnets with team members. -- networksandchill, 2020-03-04 ### **--- "Interface needs work" 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. -- PBehne, 2019-12-26 ### ***** "Practical and most useful" For iPhone...this is the most useful subnet tool used. Saves locations and gives you all the information you need in one page. -- RogerinMentor, 2018-09-14 ### ****- "No landscape?" 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. -- Playinpearls, 2018-09-04 ### ***** "Costs ads - free otherwise" 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. -- Powerup777, 2016-12-14 ### ***-- "Does this work for non-class C networks?" I can't get the proper number of subnets to show in a class A network. -- JeffreyCD, 2016-11-19 ### ***** "Great app" Well designed subnet calculator. -- PoisonReverse, 2016-09-03 ### ***** "Great Subnet Calculator" 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. -- Kids love it so, 2016-07-04 ### ***** "5 stars" This is an amazing conversion tool. It is an useful and professional. Great for network administrators. Good job! -- Aliyparus, 2016-05-28 ### ***** "Robust" Seems to be a very complete tool -- Who Am, 2016-05-27 ### ****- "Good calc" The user interface looks really poor but the app does what it claims to do flawlessly. The data is absolutely accurate -- guy_ritchie, 2016-05-23 ### ***** "Wow" I have never used such subnet calc apps on iPad. Great helper for some special maths stuff thanks -- Liza Best, 2016-05-23 ### ****- "good" This is a really easy calculator that never disappoints me. Good app to cope with the calculations -- Sveta182, 2016-05-22 ### ****- "Subnet calc" I've been using this app lately and it fully satisfies all my needs👌🏼 -- Cary Starr, 2016-05-22 ### ***** "Great for sysadmins" 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. -- Xander_Gaarza, 2016-05-21 ### ***** "Helpful" 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. -- Dedushka Lemon, 2016-05-21 ### ***** "It's a must-have" This app has simplified everything for me in terms of subnetting. The data is 100% accurate -- Karl Foley, 2016-05-21 ### ***** "5" very unusual and really uniq calculator with perfect interface:) -- deryuginarina, 2016-05-21 ### ****- "good" Fine subnet calculator. Slow but works consistently. Which is all I needed. Thanks. -- Alex Viss, 2016-05-21 ### ***** "Good!" Very useful and informative program in capable hands. I am satisfied with it. Thank you! -- Lora_Walton, 2016-05-20 [View all Subnet Plus reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Subnet Plus In-App Purchases | Item | Price | |------|-------| | remove Ads | $4.99 | ## Subnet Plus Discovered Keywords - network tool - find my - network - network monitor - subnet calculator - subnet calc - dns tools - subnet plus - widget tool - lan ## Apps Similar to Subnet Plus - [CIDR Calc](https://apptail.io/app/cidr-calc-xvQc/united-states) - [Simple Subnet Calc](https://apptail.io/app/simple-subnet-calc-zgpd/united-states) - [Subnet Calculator +](https://apptail.io/app/subnet-calculator-Ogre/united-states) - [CIDR](https://apptail.io/app/cidr-DGDe/united-states) - [About Subnet Mask](https://apptail.io/app/about-subnet-mask-psLf/united-states) - [IPv4 Subnet Calculator](https://apptail.io/app/ipv4-subnet-calculator-BIcm/united-states) - [easy Subnet Calculator](https://apptail.io/app/easy-subnet-calculator-ckao/united-states) - [Subnet Mask Calc](https://apptail.io/app/subnet-mask-calc-uNip/united-states) - [Subnet Calculator 192](https://apptail.io/app/subnet-calculator-192-rCiw/united-states) - [Visual Subnet Calculator](https://apptail.io/app/visual-subnet-calculator-mGgy/united-states) ## Subnet Plus Available In - [United States](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/united-states) - [South Korea](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/south-korea) - [Mexico](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/mexico) - [Germany](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/germany) - [China](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/china) - [Russia](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/russia) - [Norway](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/norway) - [Brazil](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/brazil) - [United Kingdom](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/united-kingdom) - 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[Iceland](https://apptail.io/app/subnet-plus-subnet-calculator-mvje/iceland) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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