This tool calculates IPv4 and IPv6 subnets, providing detailed information such as the number of hosts, subnet size, class, and network addresses. Use the interactive CIDR slider to dynamically adjust subnet properties.




246+ iOS apps curated and reviewed
The best subnet calc apps on iPhone average 4.0★ across 246+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.9★ (220) | No | No | Sep 2026 | ||
| 2 | Free | 5.0★ (2) | No | Yes | May 2026 | ||
| 3 | Free | 4.0★ (7) | No | Yes | May 2026 | ||
| 4 | Free | 3.8★ (4) | No | No | May 2026 | ||
| 5 | Free | 2.3★ (22) | Yes | No | May 2026 | ||
| 6 | $3.99 | 3.3★ (3) | No | No | Aug 2026 | ||
| 7 | $1.99 | 5.0★ (34) | No | No | Sep 2026 | ||
| 8 | Free | 5.0★ (1) | No | No | May 2026 |




This tool calculates IPv4 and IPv6 subnets, providing detailed information such as the number of hosts, subnet size, class, and network addresses. Use the interactive CIDR slider to dynamically adjust subnet properties.




Calculate detailed subnet and IP information. This tool helps network administrators quickly understand subnet details, including class and IP range classification. An advanced version offers additional features for managing network configurations.



This utility app simplifies network calculations for professionals and students. It offers tools for IPv4 and IPv6 subnetting, including live CIDR sliders and subnet splitting. Results can be easily shared or copied.