# LumiCalc vs ClearKey Calc

The clearest difference is in-app purchases: ClearKey Calc at none against LumiCalc's 1. LumiCalc's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. LumiCalc sells 1 in-app purchase, starting at $2.99 per month. ClearKey Calc asks for nothing beyond the download.

## The numbers

| Metric | LumiCalc | ClearKey Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 3 MB | 30 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [阳 赵](https://appshunter.io/developer/1863829449) | [鹏飞 陈](https://appshunter.io/developer/1891216752) |

## What reviewers say

### LumiCalc

[App page](https://appshunter.io/ios/app/lumicalc/id6759085439)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium — Monthly | $2.99 | per month |


### 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 LumiCalc free?

LumiCalc 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 LumiCalc or ClearKey Calc have ads?

Neither LumiCalc 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.*