# Reaction Test Pro vs ReactionTimeChecker

The clearest difference is rating: Reaction Test Pro at 4.3 against ReactionTimeChecker's 1.0. Reaction Test Pro also leads on ads (none vs shown) and ratings volume (215 vs 1). On price, update cadence, 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 Test Pro holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Reaction Test Pro has 215 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 53% of Reaction Test Pro's written reviews are positive against 33% of ReactionTimeChecker's.

Reaction Test Pro ships an update every 9 months, ReactionTimeChecker every 7 months. The most recent releases landed on October 21, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Reaction Test Pro | ReactionTimeChecker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (215 ratings)](https://appshunter.io/ios/app/reaction-test-pro/id493360516/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/reactiontimechecker/id537191082/reviews) |
| Number of ratings | **215** | 1 |
| Positive reviews | **53.2% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 7 months** |
| Monetization | **Free** | Ad-supported |
| Size | 7 MB | 22 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Freedom Apps](https://appshunter.io/developer/396959214) | [NSC, K.K.](https://appshunter.io/developer/501890400) |

## What reviewers say

### Reaction Test Pro

[App page](https://appshunter.io/ios/app/reaction-test-pro/id493360516)

Test your reflexes with precision down to the microsecond. Engage in a variety of fun mini-games designed to challenge your speed and skill. Compete with friends and players globally on leaderboards.

**Highlights:** Microsecond reaction time measurement, Multiple mini-games, Global leaderboards, Challenge friends, Skill-based challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### ReactionTimeChecker

[App page](https://appshunter.io/ios/app/reactiontimechecker/id537191082)

Test your reflexes by tapping a color-changing button as quickly as possible. Compete with others through online leaderboards and receive an evaluation of your performance.

**Highlights:** Reaction time testing, Color-changing button gameplay, Score and evaluation display, Online ranking system, Automatic result upload

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Test Pro free?

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

### Is ReactionTimeChecker free?

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

### Which has better reviews, Reaction Test Pro or ReactionTimeChecker?

Reaction Test Pro is rated higher. Reaction Test Pro averages 4.3 out of 5 from 215 ratings, while ReactionTimeChecker averages 1.0 from 1 ratings.

### Do Reaction Test Pro or ReactionTimeChecker have ads?

ReactionTimeChecker shows ads; Reaction Test Pro does not.

### Which is updated more often, Reaction Test Pro or ReactionTimeChecker?

Reaction Test Pro ships an update every 9 months, and ReactionTimeChecker every 7 months. Most recently, Reaction Test Pro was updated on October 21, 2026 and ReactionTimeChecker on October 3, 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.*