IP Calculator: Subnet & CIDR
Utilities
Free · Designed for iPad. Not verified for macOS.
Spin the wheels and watch every subnet value update live. Offline, free, no ads, no tracking.
IP Calculator is a fast, no-nonsense IPv4 subnet calculator for network engineers, students and anyone configuring a network.
Set an address and prefix with native iOS wheels: four octets (0-255) and a CIDR prefix (/0 to /32). Results recalculate live while the wheels spin, so you can explore subnets as fast as you can scroll.
FOR ANY CIDR BLOCK YOU GET
- Subnet mask
- Number of hosts
- Broadcast address
- Wildcard mask
- Usable host address range
- Netmask in binary
- IP classification: class A-E, public or private, plus special ranges like loopback, link-local and multicast
CONVENIENT
- Tap any result to copy it to the clipboard
- Light and dark mode
- Works on iPhone and iPad
- VoiceOver support
PRIVATE BY DESIGN
Everything is calculated on your device. No account, no ads, no analytics, no network access.
IP Calculator is open source: github.com/ntufar/IPCalculator
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Nicolai Tufar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nicolai Tufar
- Size
- 384 KB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nicolai Tufar