# CIDR Tool vs Aspect Ratio Pro

The clearest difference is price: CIDR Tool at $0.99 against Aspect Ratio Pro's $3.99. CIDR Tool also leads on device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

CIDR Tool costs $0.99 and Aspect Ratio Pro $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | CIDR Tool | Aspect Ratio Pro |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/aspect-ratio-pro/id6747417099/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Paid |
| Size | 1 MB | 24 MB |
| Requires iOS | **17.5** | 18.6 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Amatino](https://appshunter.io/developer/1664965510) | [App ahead GmbH](https://appshunter.io/developer/955848754) |

## What reviewers say

### CIDR Tool

[App page](https://appshunter.io/ios/app/cidr-tool/id6584521890)

**In-app purchases:** none


### Aspect Ratio Pro

[App page](https://appshunter.io/ios/app/aspect-ratio-pro/id6747417099)

This app helps you quickly solve for an unknown value in a proportion. Simply input three known numbers, and it will calculate the fourth, making ratio and proportion calculations effortless.

**Highlights:** Rule of three calculations, Instant fourth value calculation, Ratio and proportion solver, Intuitive input interface, Supports iPhone and Mac

**In-app purchases:** none


## Frequently asked questions

### Is CIDR Tool free?

CIDR Tool costs $0.99, with no in-app purchases.

### Is Aspect Ratio Pro free?

Aspect Ratio Pro costs $3.99, with no in-app purchases.

### Do CIDR Tool or Aspect Ratio Pro have ads?

Neither CIDR Tool nor Aspect Ratio Pro shows ads.

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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.*