IP Subnet Calc vs CIDR Calc
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 Calc
Calculate subnet details, including IP addresses, masks, and reverse masks, using CIDR notation. Generate and share lists of subnets and hosts within the next higher octet. This tool simplifies network calculations for IT professionals and students.
- Subnet calculation
- IP address display
- Mask and reverse mask
- Shareable subnet lists
- Host calculation
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Displays subnet, IP addresses, mask, and reverse mask based on IP and CIDR notation. Generates shareable list of all subnets and hosts in next higher octet.
Screenshots
Verdict
The clearest difference is ratings volume: IP Subnet Calc at 220 against CIDR Calc's 1. IP Subnet Calc also leads on iOS requirement (9.0 vs 16.0). On price, rating, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for IP Subnet Calc against 5.0 for CIDR Calc. 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 Calc every 19 months. The most recent releases landed on September 26, 2026 and September 8, 2026 respectively.
| Parameter | IP Subnet Calc | CIDR Calc |
|---|---|---|
| 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 — better | Every 19 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 20 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Goncalo Silva | Paul Smicker |
Customer experience
IP Subnet Calc
CIDR Calc
In-app purchases
IP Subnet Calc
No in-app purchases
CIDR Calc
No in-app purchases
Questions
Is IP Subnet Calc free?
Is CIDR Calc free?
Which has better reviews, IP Subnet Calc or CIDR Calc?
Do IP Subnet Calc or CIDR Calc have ads?
Which is updated more often, IP Subnet Calc or CIDR Calc?
Other comparisons
