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CIDRly

IPv4 & IPv6 subnet calculator
BRYAN WILLIAM SPENCE · Utilities
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CIDRly is an iOS Utilities app by BRYAN WILLIAM SPENCE, released on Oct 27, 2026. The current version, 1.0, came out 13 days ago. It has no ratings yet. It is free to download and offers 1 in-app purchase priced $2.99.

App info

Developer
BRYAN WILLIAM SPENCE
Category
Utilities, Developer Tools
Released
Oct 27, 2026
Version
1.0 (Oct 28, 2026)
Price
Free
Size
4.0 MB
Requires
iOS 18.0
Age rating
4+
Languages
English

In-app purchases

Remove Ads$2.99
Current prices, App Store US.
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About CIDRly

CIDRly is a fast, focused subnet calculator for network engineers. Type or paste an address and the answers appear as you type. No ads-first interstitials, no sign-in, no round trip to a web calculator on a client site where you may not have decent signal. IPv4 • Network and broadcast address • Subnet mask and CIDR notation • Wildcard mask, ready to paste into an ACL • First and last usable host • Usable host count and total addresses • Accepts either 192.168.1.10/24 or 192.168.1.10 255.255.255.0 IPv6 • Network address, canonicalized to RFC 5952 form • Prefix length • First and last address in the range • Exact total address count - even for /0, which is a 39-digit number Built for how the work actually goes • Paste an address and CIDRly recognizes the family on its own; the IPv4/IPv6 picker follows what you typed • Tap any row to copy that value to the clipboard • A number pad with the…
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