# Reaction Time Test vs Simple Reaction Timer

The clearest difference is update cadence: Simple Reaction Timer at daily against Reaction Time Test's every 3 months. Reaction Time Test's advantage is iOS requirement (15.6 vs 17.6). 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.

Reaction Time Test ships an update every 3 months, Simple Reaction Timer daily. The most recent releases landed on September 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Reaction Time Test | Simple Reaction Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 13 MB | 10 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [ANDREW MARTYN BANNER](https://appshunter.io/developer/1785719851) |

## What reviewers say

### Reaction Time Test

[App page](https://appshunter.io/ios/app/reaction-time-test-rtt/id1669730948)

Test and train your reflexes with this app. Simply tap the screen when a red square appears to measure your reaction speed and improve your concentration. Daily practice can enhance your reflexes, making it ideal for gamers.

**Highlights:** Reaction speed testing, Reflex training, Concentration improvement, Rank display, Daily practice recommended

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

**In-app purchases:** none


### Simple Reaction Timer

[App page](https://appshunter.io/ios/app/simple-reaction-timer/id6752825952)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Time Test free?

Reaction Time Test is free to download, with no in-app purchases.

### Is Simple Reaction Timer free?

Simple Reaction Timer is free to download, with no in-app purchases.

### Do Reaction Time Test or Simple Reaction Timer have ads?

Both Reaction Time Test and Simple Reaction Timer show ads.

### Which is updated more often, Reaction Time Test or Simple Reaction Timer?

Reaction Time Test ships an update every 3 months, and Simple Reaction Timer daily. Most recently, Reaction Time Test was updated on September 23, 2026 and Simple Reaction Timer on October 10, 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.*