# Memory Palace ASD vs Reaction Lab

The clearest difference is price: Reaction Lab at Free against Memory Palace ASD's $5.99. Memory Palace ASD's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads there is nothing between them.

Reaction Lab is free to download; Memory Palace ASD costs $5.99 up front. Reaction Lab sells 2 in-app purchases, starting at $1.99 per month. Memory Palace ASD asks for nothing beyond the download.

## The numbers

| Metric | Memory Palace ASD | Reaction Lab |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/reaction-lab-reflex-tests/id6757831974/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 7 months |
| Monetization | — | Free with in-app purchases |
| Size | 160 MB | 22 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Humberto Daza](https://appshunter.io/developer/1823119316) | [Anthony Harvey](https://appshunter.io/developer/1478197285) |

## What reviewers say

### Memory Palace ASD

[App page](https://appshunter.io/ios/app/memory-palace-asd/id6754575512)

**Features:** macOS Compatibility

**In-app purchases:** none


### Reaction Lab

[App page](https://appshunter.io/ios/app/reaction-lab-reflex-tests/id6757831974)

Measure and improve your response speed with a suite of scientifically-inspired tests. Track progress over time with detailed analytics and gain insights into your performance in various situations. Designed for focus and privacy, all data stays on your device.

**Highlights:** Multiple reaction time test types, Visual, audio, and haptic cues, Grip-release and motion-based tests, Dual-task and fatigue tracking, Detailed session summaries and trend charts, On-device data privacy, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| React Fast Monthly | $1.99 | per month |
| React Fast Yearly | $4.99 | per year |


## Frequently asked questions

### Is Memory Palace ASD free?

Memory Palace ASD costs $5.99, with no in-app purchases.

### Is Reaction Lab free?

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

### Do Memory Palace ASD or Reaction Lab have ads?

Neither Memory Palace ASD nor Reaction 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.*