Subnet Ninja
Developer Tools
Free · In‑App Purchases
Fast CIDR planning for IPv4, IPv6, VLSM, overlap checks, visual subnet trees, and cloud network modes.
Subnet Ninja is a fast subnet planning tool for network engineers, cloud operators, IT students, and builders who need reliable CIDR math without opening a spreadsheet.
Use the free IPv4 calculator to inspect network address, broadcast address, usable host range, subnet mask, wildcard mask, host count, and private/public classification. Paste a CIDR block to fill the address and prefix instantly.
Subnet Ninja Pro unlocks the deeper planning workflow:
- IPv6 prefix calculations
- VLSM planning
- CIDR overlap detection
- Visual subnet tree generation
- AWS, Azure, and GCP network modes
- CSV and JSON export
- Expanded history and workflow tools
A lifetime Pro purchase unlocks Pro features on Apple platforms. Use Restore Purchases on another device signed in with the same Apple account.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Shota Hirokane, 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
- Shota Hirokane
- Size
- 19.3 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 10.15 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Subnet Ninja Pro $4.99
- Copyright
- © 2026 Engawa Dev