# Calkey vs Space wiper

The clearest difference is device support: Calkey at 3 against Space wiper's 1. Calkey also leads on iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases 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 | Calkey | Space wiper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 22 MB | 8 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [INGWA LABS IT SERVICES PRIVATE LIMITED](https://appshunter.io/developer/1722075796) | [Rajalben Vavadiya](https://appshunter.io/developer/6790680384) |

## What reviewers say

### Calkey

[App page](https://appshunter.io/ios/app/calkey-financial-calculators/id6474615438)

**Features:** macOS Compatibility

**In-app purchases:** none


### Space wiper

[App page](https://appshunter.io/ios/app/space-wiper/id6739068918)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calkey free?

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

### Is Space wiper free?

Space wiper is free to download, with no in-app purchases.

### Do Calkey or Space wiper have ads?

Neither Calkey nor Space wiper 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.*