# VoxCalculator vs ClearKey Calc

The clearest difference is in-app purchases: ClearKey Calc at none against VoxCalculator's 1. ClearKey Calc also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. VoxCalculator sells 1 one-off in-app purchase. ClearKey Calc asks for nothing beyond the download.

## The numbers

| Metric | VoxCalculator | ClearKey Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Size | 1 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [维凯 蓝](https://appshunter.io/developer/1715587825) | [鹏飞 陈](https://appshunter.io/developer/1891216752) |

## What reviewers say

### VoxCalculator

[App page](https://appshunter.io/ios/app/voxcalculator/id6476790594)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $2.99 | one-time |


### ClearKey Calc

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

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

**In-app purchases:** none


## Frequently asked questions

### Is VoxCalculator free?

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

### Is ClearKey Calc free?

ClearKey Calc 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.*