# ReactionTimeChecker vs ReflexChallengeGame

The clearest difference is update cadence: ReflexChallengeGame at every 3 weeks against ReactionTimeChecker's every 7 months. 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.

ReactionTimeChecker ships an update every 7 months, ReflexChallengeGame every 3 weeks. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ReactionTimeChecker | ReflexChallengeGame |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/reactiontimechecker/id537191082/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 22 MB | 20 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NSC, K.K.](https://appshunter.io/developer/501890400) | [KyoungHun Joo](https://appshunter.io/developer/1529420794) |

## What reviewers say

### 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


### ReflexChallengeGame

[App page](https://appshunter.io/ios/app/reflexchallengegame/id1529420792)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ReactionTimeChecker free?

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

### Is ReflexChallengeGame free?

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

### Do ReactionTimeChecker or ReflexChallengeGame have ads?

Both ReactionTimeChecker and ReflexChallengeGame show ads.

### Which is updated more often, ReactionTimeChecker or ReflexChallengeGame?

ReactionTimeChecker ships an update every 7 months, and ReflexChallengeGame every 3 weeks. Most recently, ReactionTimeChecker was updated on October 3, 2026 and ReflexChallengeGame on September 27, 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.*