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.


202+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our ipv4 cidr calc list covers 202+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | Yes | Yes | Jul 2026 | ||
| 2 | Free | 4.9★ (220) | No | No | Sep 2026 | ||
| 3 | Free | 5.0★ (2) | No | Yes | May 2026 | ||
| 4 | $1.99 | 5.0★ (34) | No | No | Sep 2026 | ||
| 5 | Free | 3.6★ (8) | No | No | Aug 2026 | ||
| 6 | Free | 2.3★ (22) | Yes | No | May 2026 | ||
| 7 | Free | 5.0★ (1) | No | No | May 2026 | ||
| 8 | $1.99 | 4.7★ (30) | No | No | Aug 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.