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.





242+ iOS apps curated and reviewed
Out of 242+ netbuddy ip subnet calculator apps on iOS, 17 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $1.99 | — | No | No | Aug 2026 | ||
| 2 | Free | 4.9★ (251) | No | No | Nov 2026 | ||
| 3 | Free | 4.7★ (145) | Yes | No | Nov 2026 | ||
| 4 | Free | — | Yes | No | Oct 2026 | ||
| 5 | Free | 5.0★ (1) | No | No | Oct 2026 | ||
| 6 | Free | — | No | Yes | Oct 2026 | ||
| 7 | Free | 5.0★ (2) | No | No | Oct 2026 | ||
| 8 | Free | 5.0★ (8) | Yes | No | Oct 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 network, host, and broadcast addresses with a dedicated keypad. Supports classful and classless modes, with pickers for subnet mask and prefix length. Includes special-purpose address information based on RFC standards.