NetBits: IP Calculator
Smart IP & Subnet Calculator
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Now with network class, address type (Private, Public, CGNAT and more) and a Share button. Fast, offline subnet math — no ads, no tracking.
NetBits is a fast, no-nonsense IP subnet calculator.
Enter an IPv4 address and subnet mask — or just type CIDR notation like
192.168.1.10/24 — and instantly get:
• Network and broadcast address
• Wildcard mask
• Usable host range (min / max)
• Number of usable hosts
• Binary representation of the address and mask
Built for network engineers, sysadmins, students, and anyone who needs
quick, accurate subnet math without ads or clutter.
FEATURES
— CIDR notation input
— Binary address/mask view
— Copy any value with a long press
— Light and Dark mode
— English and Russian
PRIVACY
NetBits works fully offline. No accounts, no analytics, no data collection —
ever.
Ratings & Reviews
• New Class row shows the network class (A–E)
• New Type row shows what kind of address it is: Private, Public, This network, Loopback, Link-local, CGNAT, Multicast, Reserved, Documentation, Benchmarking, IETF protocol, 6to4 relay or Limited broadcast
• Share button at the top of the screen sends the result as text
• Fixed usable hosts for /31 and /32 subnets: now 2 and 1
The developer, Vitaly Churkin, 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
- Vitaly Churkin
- Size
- 2.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Russian
- Age Rating
4+
- 4+
- Copyright
- © 2026 Churkin Vitaly