# CalculatorPro vs ClearKey Calc

The clearest difference is in-app purchases: ClearKey Calc at none against CalculatorPro's 2. ClearKey Calc also leads on iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. CalculatorPro sells 2 one-off in-app purchases. ClearKey Calc asks for nothing beyond the download.

## The numbers

| Metric | CalculatorPro | ClearKey Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 36 MB | 30 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aylin Yahya-zada](https://appshunter.io/developer/1674241266) | [鹏飞 陈](https://appshunter.io/developer/1891216752) |

## What reviewers say

### CalculatorPro

[App page](https://appshunter.io/ios/app/calculatorpro-modes-and-widgets/id6753143677)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator Pro - Launch Offer | $3.99 | one-time |
| Calculator Pro | $5.99 | 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 CalculatorPro free?

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

### Is ClearKey Calc free?

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

### Do CalculatorPro or ClearKey Calc have ads?

Neither CalculatorPro nor ClearKey Calc 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.*