Archived App (Last seen on 16 May 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Subnet Calc is a comprehensive IPv4 subnet calculator for network engineers, IT professionals, and students.
Features:
• Enter any IPv4 address with CIDR prefix
• Instant calculation of all subnet details
• Network address and broadcast address
• Subnet mask and wildcard mask
• First and last usable host addresses
• Total addresses and usable hosts count
• IP class identification (A/B/C/D/E)
• Binary representation of IP address
• Interactive CIDR reference table (tap to apply)
• Supported CIDR: /8 to /32
• Networking tips section
• Beautiful dark mode interface
• Bilingual: English and Chinese
Perfect for CCNA/CCNP preparation, network troubleshooting, and IP address planning.
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What's New in Subnet Calc Max
1.0
April 21, 2026
