# IP Subnet Calc — Calculate IPv4 and IPv6 > Subnet calculator for IPv4 and IPv6 with dynamic CIDR adjustment. (iPhone/iPad app by Goncalo Silva.) - Source: https://appshunter.io/ios/app/ip-subnet-calc/id1282188941 (this page in markdown: same URL + `.md`) - Developer: [Goncalo Silva](https://appshunter.io/developer/1281379202) - Category: Utilities, Productivity - Price: Free - Rating: 4.90/5 from 220 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 20 MB - Languages: American English - Released: 2017-09-15 - Data updated: 2026-08-23 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/ip-subnet-calc/id1282188941/reviews.md ## What is IP Subnet Calc? This subnet calculator converts both IPv4 and IPv6 addresses and displays useful information about your subnets like number of hosts, subnet size, class, subnet mask, wildcard, network address, first address, last address and broadcast address. Take the CIDR slider and watch the subnet properties change accordingly to the IP address. ## Key features - IPv4 and IPv6 subnet calculation - Displays number of hosts - Shows subnet size and class - Provides network and broadcast addresses - Interactive CIDR slider ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/ip-subnet-calc/id1282188941/reviews.md ### 5/5 — Good solution *2022-05-02* Simple, practical and helpful tool. I like it ! ### 5/5 — Endlich Dark Mode ! *2020-03-02* Sehr gute App weiter so :) ### 5/5 — Very helpful and easy to use! *2020-03-02* This is by far one of the best apps I’ve had, it’s helped me with school a lot. It is also very easy to use. ### 5/5 — Very Good *2020-03-02, version 1.3* Excellent app and super easy to use. Very helpful for quick and easy calculations for subnets! ### 5/5 — Great application *2019-12-07, version 1.2* Hey guy. Your application is so great but you should implement dark mode function. One more thing price of pro version is more expensive. I should buy it with 0.99$. Anw thank you so much for your service. ## Frequently asked questions about IP Subnet Calc ### What does this subnet calculator do? This application calculates details for both IPv4 and IPv6 subnets. It provides comprehensive information about your subnets, including the number of available hosts, the size of the subnet, its IP class, and essential addresses like the network, first, last, and broadcast addresses. ### What are the key features of this IP subnet calculator? Key features include the ability to calculate both IPv4 and IPv6 subnets, display critical subnet information such as the number of hosts and subnet size, and provide network, first, last, and broadcast addresses. It also includes an interactive CIDR slider for dynamic adjustments. ### Is this app free to use? Yes, this application is completely free to use. There are no costs associated with downloading or utilizing its subnet calculation features. ### What kind of devices is this app compatible with? This application is designed for mobile devices. While specific operating system versions are not detailed, it functions as a utility for calculating IP subnets on your mobile device. ### Who would find this subnet calculator useful? This tool is particularly useful for network administrators, IT professionals, and students studying networking concepts. It helps in understanding and managing IP address allocation and subnetting for various network configurations. ## Version history (last 3 releases) ### 1.3 — 2020-03-02 - Support for dark mode - Performance improvements ### 1.2 — 2017-11-18 - Added support for iPhone X ### 1.1 — 2017-09-15 No release notes. ## Apps similar to IP Subnet Calc | App | Rating | Price | Category | | --- | --- | --- | --- | | [IP and Subnet Calculator Pro](https://appshunter.io/ios/app/ip-and-subnet-calculator-pro/id1028901431) | — | $3.99 | Utilities | | [RouteThis Helps](https://appshunter.io/ios/app/routethis-helps/id1173976362) | 2.0 (200) | Free | Utilities | | [Subnet Calculator 192](https://appshunter.io/ios/app/subnet-calculator-192/id6748156871) | — | Free | Utilities | | [CIDR Calc](https://appshunter.io/ios/app/cidr-calc/id1565667811) | 5.0 (1) | Free | Utilities | | [Find My IP - Find Device IP](https://appshunter.io/ios/app/find-my-ip-find-device-ip/id741990073) | 4.1 (1,282) | Free | Utilities | | [Subnet Calculator +](https://appshunter.io/ios/app/subnet-calculator-plus/id445990645) | 4.0 (7) | Free | Utilities | ## More apps by Goncalo Silva - [IP Subnet Calc Pro](https://appshunter.io/ios/app/ip-subnet-calc-pro/id1281379203) All apps by Goncalo Silva: https://appshunter.io/developer/1281379202 ## Related topics [ip calculator](https://appshunter.io/ios/topics/ip-calculator) · [sj ipv4 calculator](https://appshunter.io/ios/topics/sj-ipv4-calculator) · [easy subnet calculator](https://appshunter.io/ios/topics/easy-subnet-calculator) · [ipv6 subneting](https://appshunter.io/ios/topics/ipv6-subneting) · [ipv4 subnet calculator](https://appshunter.io/ios/topics/ipv4-subnet-calculator) · [ip and subnet calculator pro](https://appshunter.io/ios/topics/ip-and-subnet-calculator-pro) · [ipv6](https://appshunter.io/ios/topics/ipv6) · [ip and subnet calculator](https://appshunter.io/ios/topics/ip-and-subnet-calculator) · [ipv4calculator](https://appshunter.io/ios/topics/ipv4calculator) · [ipv4](https://appshunter.io/ios/topics/ipv4) --- *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 2026-08-23.*