# Fast Reflex vs ProReact

The clearest difference is review sentiment: Fast Reflex at 100% against ProReact's 0%. Fast Reflex also leads on rating (4.5 vs 1.0) and ratings volume (47 vs 1). ProReact's advantage is price (Free vs $0.99) and in-app purchases (none vs 1). On ads and device support there is nothing between them.

ProReact is free to download; Fast Reflex costs $0.99 up front. Fast Reflex sells 1 one-off in-app purchase. ProReact asks for nothing beyond the download.

Fast Reflex holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Fast Reflex has 47 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Fast Reflex's written reviews are positive against 0% of ProReact's.

Fast Reflex ships an update every 2 weeks, ProReact every 3 days. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Fast Reflex | ProReact |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.5 (47 ratings)](https://appshunter.io/ios/app/fast-reflex-test-your-brain/id1426315814/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/proreact-reaction-time-test/id1522046954/reviews) |
| Number of ratings | **47** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Paid | **Free** |
| Size | 76 MB | 3 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Radoslaw Kubas](https://appshunter.io/developer/1643306872) | [Kropf IT e.U.](https://appshunter.io/developer/1482647335) |

## What reviewers say

### Fast Reflex

[App page](https://appshunter.io/ios/app/fast-reflex-test-your-brain/id1426315814)

This game challenges your reaction speed and hand-eye coordination with precise testing down to a millionth of a second. Compete globally on leaderboards and explore unique tests to boost focus and dexterity.

**Highlights:** Precise reflex testing, Global leaderboards, Telepathy test, Enhances focus and dexterity, Simple interface, Quick mental exercises

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### ProReact

[App page](https://appshunter.io/ios/app/proreact-reaction-time-test/id1522046954)

Test your reflexes by tapping the screen when a red color appears or vibration is felt. This open-source application offers an ad-free experience at no cost. Measure your reaction time and have fun with this simple game.

**Highlights:** Measure reaction time, Tap on red screen, Vibrational feedback, Ad-free experience, Open-source on GitHub

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fast Reflex free?

Fast Reflex costs $0.99, and also offers in-app purchases.

### Is ProReact free?

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

### Which has better reviews, Fast Reflex or ProReact?

Fast Reflex is rated higher. Fast Reflex averages 4.5 out of 5 from 47 ratings, while ProReact averages 1.0 from 1 ratings.

### Do Fast Reflex or ProReact have ads?

Neither Fast Reflex nor ProReact shows ads.

### Which is updated more often, Fast Reflex or ProReact?

Fast Reflex ships an update every 2 weeks, and ProReact every 3 days. Most recently, Fast Reflex was updated on October 9, 2026 and ProReact on October 6, 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.*