CIDR vs NetBits
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
NetBits
This utility app quickly calculates IP subnet information. It provides network and broadcast addresses, usable host ranges, and binary representations for IPv4 addresses and subnet masks. Designed for network professionals and students, it offers a clean, ad-free experience.
- CIDR notation input
- Network and broadcast address calculation
- Usable host range display
- Binary address and mask view
- Offline functionality
- Ad-free experience
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: NetBits at none against CIDR's 1. On price, rating, ratings volume and update cadence 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. NetBits asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for CIDR against 5.0 for NetBits. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
CIDR ships an update every 3 weeks, NetBits monthly. The most recent releases landed on June 30, 2026 and September 22, 2026 respectively.
| Parameter | CIDR | NetBits |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 23 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | ao-system, Inc. | Vitaly Churkin |
Customer experience
CIDR
NetBits
In-app purchases
CIDR
- Remove Ads$1.99
NetBits
No in-app purchases
