IP Subnet Calc vs CIDR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IP Subnet Calc
This tool calculates IPv4 and IPv6 subnets, providing detailed information such as the number of hosts, subnet size, class, and network addresses. Use the interactive CIDR slider to dynamically adjust subnet properties.
- IPv4 and IPv6 subnet calculation
- Displays number of hosts
- Shows subnet size and class
- Provides network and broadcast addresses
- Interactive CIDR slider
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This subnet calculator converts both IPv4 and IPv6 addresses and displays useful information about your subnets like number of hosts, subnet size, class, subnet mask, wildcard, network address, first address, last address and broadcast address. Take the CIDR slider and watch the subnet properties change accordingly to the IP address.
CIDR
This utility calculates IP address ranges from an IP address and subnet mask. It supports IPv4 calculations, including prefix display, address range counts, and bit notation. Useful for quick CIDR notation checks and subnet mask conversions.
- IP address range calculation
- Subnet mask to CIDR conversion
- IPv4 prefix display
- Number of address ranges
- Bit notation display
- Quick reference table
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Calculate the IP address range from the IP address and subnet mask. It can be used to calculate IPv4 addresses, including prefix display, number of address ranges, and bit notation. CIDR calculation, when you want to check CIDR notation quickly. To convert subnet mask to CIDR notation. It can also be used as a quick reference table for subnet masks. Bit notation is also available, so it is suitable for learning IPv4.
Screenshots
Verdict
The clearest difference is in-app purchases: IP Subnet Calc at none against CIDR's 1. IP Subnet Calc also leads on ratings volume (220 vs 1) and iOS requirement (9.0 vs 15.6). CIDR's advantage is update cadence (every 3 weeks vs every 15 months). On price, rating, ads and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CIDR sells 1 one-off in-app purchase. IP Subnet Calc asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for IP Subnet Calc against 5.0 for CIDR. That said, the two scores are not equally well evidenced: IP Subnet Calc has 220 ratings behind it against 1, so its average is the more settled of the two.
IP Subnet Calc ships an update every 15 months, CIDR every 3 weeks. The most recent releases landed on September 26, 2026 and June 30, 2026 respectively.
| Parameter | IP Subnet Calc | CIDR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (220 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 220 — better | 1 |
| Update frequency | Every 15 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 20 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Goncalo Silva | ao-system, Inc. |
Customer experience
IP Subnet Calc
CIDR
In-app purchases
IP Subnet Calc
No in-app purchases
CIDR
- Remove Ads$1.99
Questions
Is IP Subnet Calc free?
Is CIDR free?
Which has better reviews, IP Subnet Calc or CIDR?
Do IP Subnet Calc or CIDR have ads?
Which is updated more often, IP Subnet Calc or CIDR?
Other comparisons
