# CIDR vs Zinus智能

The clearest difference is in-app purchases: Zinus智能 at none against CIDR's 1. Zinus智能 also leads on iOS requirement (12.0 vs 15.6). CIDR's advantage is device support. On price there is nothing between them.

Both are free to download. CIDR sells 1 one-off in-app purchase. Zinus智能 asks for nothing beyond the download.

## The numbers

| Metric | CIDR | Zinus智能 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cidr/id1564239813/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 23 MB | 52 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [akira ohmachi](https://appshunter.io/developer/1338624340) | [舒榻(厦门)智能科技有限公司](https://appshunter.io/developer/1687447775) |

## What reviewers say

### CIDR

[App page](https://appshunter.io/ios/app/cidr/id1564239813)

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.

**Highlights:** IP address range calculation, Subnet mask to CIDR conversion, IPv4 prefix display, Number of address ranges, Bit notation display, Quick reference table

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Zinus智能

[App page](https://appshunter.io/ios/app/zinus/id6484592198)

**In-app purchases:** none


## Frequently asked questions

### Is CIDR free?

CIDR is free to download, with in-app purchases available.

### Is Zinus智能 free?

Zinus智能 is free to download, with no in-app purchases.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*