# Reaction Timer Training vs Reaction Lab

The clearest difference is rating: Reaction Lab at 5.0 against Reaction Timer Training's 2.3. Reaction Lab also leads on ads (none vs shown). Reaction Timer Training's advantage is update cadence (every 3 months vs every 7 months) and device support (4 vs 1). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Reaction Timer Training sells 1 in-app purchase, starting at $1.99 per month and Reaction Lab sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Reaction Lab holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Reaction Timer Training ships an update every 3 months, Reaction Lab every 7 months. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Reaction Timer Training | Reaction Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (4 ratings)](https://appshunter.io/ios/app/reaction-timer-training/id1512744673/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/reaction-lab-reflex-tests/id6757831974/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 35 MB | 22 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MillionTask, Unipessoal, Lda](https://appshunter.io/developer/1512744672) | [Anthony Harvey](https://appshunter.io/developer/1478197285) |

## What reviewers say

### Reaction Timer Training

[App page](https://appshunter.io/ios/app/reaction-timer-training/id1512744673)

Enhance your cognitive and physical performance with this reaction training app. Improve reaction time, decision-making, and coordination using customizable drills and Apple Watch integration. Track progress and sync data with the Health app.

**Highlights:** Improve reaction time, Enhance decision time, Develop peripheral vision, Boost coordination and speed, Customizable training drills, Apple Watch integration, Health app sync

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Auto Renewable Subs | $1.99 | per month |


### 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 Reaction Timer Training free?

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

### Is Reaction Lab free?

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

### Which has better reviews, Reaction Timer Training or Reaction Lab?

Reaction Lab is rated higher. Reaction Timer Training averages 2.3 out of 5 from 4 ratings, while Reaction Lab averages 5.0 from 2 ratings.

### Do Reaction Timer Training or Reaction Lab have ads?

Reaction Timer Training shows ads; Reaction Lab does not.

### Which is updated more often, Reaction Timer Training or Reaction Lab?

Reaction Timer Training ships an update every 3 months, and Reaction Lab every 7 months. Most recently, Reaction Timer Training was updated on October 5, 2026 and Reaction Lab on September 26, 2026.

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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.*