IPv4 Subnet Calculator.

• Instantly calculate subnet masks, network/broadcast addresses
• View usable IP ranges and host counts
• Smart CIDR suggestion based on IP class
• Private IP range detection and validation
• Binary and decimal format display options
• Special handling for common private network ranges
  • (i.e. 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16)

IPv6 Calculator.

• Full IPv6 address support with prefix calculations
• Compressed and full hexadecimal display formats
• Network prefix identification
• Address type detection (Global Unicast, Link Local, etc.)
• Modern IPv6 networking support

VLAN Management.

• Create and manage VLANs from ID 1 to 4094
• Quick access to common VLAN configurations
• VLAN range validation and descriptions
• Predefined templates for common VLAN setups
• Track VLAN assignments across your network

MAC Address Tools.

• Vendor/OUI lookup functionality
• Multiple format display options (colons, hyphens, dots)
• Detailed MAC address properties
• Unicast/Multicast detection
• Administration type identification

Comprehensive Port Reference.

• Common TCP/UDP port database
• Quick search functionality
• Detailed protocol information
• Filter by TCP, UDP, or both

Save & Export Features.

• Save frequently used subnets
• Export configurations to CSV
• Generate Cisco IOS configuration scripts
• Create PowerShell DHCP server configurations
• Organize subnets with custom labels and VLAN assignments
• Perfect for:
  • Network Engineers
  • IT Administrators
  • Network Students
  • DevOps Professionals
  • System Administrators
  • Anyone working with IP networks

PROFESSIONAL FEATURES:

• Save frequently used subnets
• Export cClean, intuitive interface designed for iOS
• Real-time calculations
• Offline functionality – no internet required
• Universal app – works on iPhone and iPad
• Dark mode support

Whether you’re designing a new network, troubleshooting subnet issues, or learning about networking, IP Subnet Calculator Pro provides the tools you need in an easy-to-use package.

Privacy Focused:

• No data collection
• All calculations performed locally
• No internet connection required
• Your network information stays on your device

Regular updates and professional support ensure you always have the most reliable networking toolkit at your fingertips. More features coming soon!

Download NetBuddy IP Subnet Calculator Pro today and streamline your network planning and management tasks!

Privacy Policy

Last updated: March 21, 2025

Introduction
IP Subnet Calculator is committed to protecting your privacy. This policy explains how we handle your information when you use our application.

Information We Don’t Collect
Our app does not collect, store, or transmit any personal information. All calculations and data processing are performed locally on your device.

Local Storage
Any subnets you save are stored locally on your device using iOS’s storage system. This data never leaves your device and is not shared with us or any third parties.

Third-Party Services
Our app does not integrate with any third-party services or analytics platforms.

MAC Address Vendor Lookup
The MAC address vendor lookup feature uses a built-in database and does not make any network requests.

Changes to Privacy Policy
We may update this privacy policy from time to time. Any changes will be reflected in the ‘Last updated’ date.

Contact
If you have any questions about this privacy policy, please contact us.