# ClearKey Calc vs Chain Calculator

The clearest difference is iOS requirement: Chain Calculator at 13.0 against ClearKey Calc's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ClearKey Calc | Chain Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 30 MB | 18 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [鹏飞 陈](https://appshunter.io/developer/1891216752) | [seongkuk park](https://appshunter.io/developer/1895828986) |

## What reviewers say

### ClearKey Calc

[App page](https://appshunter.io/ios/app/clearkey-calc/id6761746376)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Chain Calculator

[App page](https://appshunter.io/ios/app/chain-calculator/id6764549705)

**In-app purchases:** none


## Frequently asked questions

### Is ClearKey Calc free?

ClearKey Calc is free to download, with no in-app purchases.

### Is Chain Calculator free?

Chain Calculator is free to download, with no in-app purchases.

### Do ClearKey Calc or Chain Calculator have ads?

Neither ClearKey Calc nor Chain Calculator 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.*