# Calculator Only vs Locker Mate

The clearest difference is iOS requirement: Calculator Only at 15.0 against Locker Mate's 18.0. On price 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 | Calculator Only | Locker Mate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Fortnightly |
| Size | 1 MB | 6 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [SJW Software LLC](https://appshunter.io/developer/1595630095) | [Daniel Li](https://appshunter.io/developer/1772462756) |

## What reviewers say

### Calculator Only

[App page](https://appshunter.io/ios/app/calculator-only/id1595670490)

**In-app purchases:** none


### Locker Mate

[App page](https://appshunter.io/ios/app/locker-mate/id6744988670)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Only free?

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

### Is Locker Mate free?

Locker Mate 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.*