# OJ Memory vs Working Memory Lab

The clearest difference is iOS requirement: Working Memory Lab at 16.0 against OJ Memory's 26.0. On price, ads, in-app purchases and device support 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 | OJ Memory | Working Memory Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 112 MB | 12 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jonas Hedberg](https://appshunter.io/developer/6797882148) | [Yuki Isaka](https://appshunter.io/developer/1891355296) |

## What reviewers say

### OJ Memory

[App page](https://appshunter.io/ios/app/oj-memory/id6805472383)

**Features:** macOS Compatibility

**In-app purchases:** none


### Working Memory Lab

[App page](https://appshunter.io/ios/app/working-memory-lab/id6807255014)

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

**In-app purchases:** none


## Frequently asked questions

### Is OJ Memory free?

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

### Is Working Memory Lab free?

Working Memory Lab is free to download, with no in-app purchases.

### Do OJ Memory or Working Memory Lab have ads?

Neither OJ Memory nor Working Memory Lab 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.*