# Reaction Test Pro vs Stop the Box!!

The clearest difference is review sentiment: Stop the Box!! at 100% against Reaction Test Pro's 53%. Stop the Box!! also leads on rating (4.9 vs 4.3) and update cadence (every 5 weeks vs every 9 months). Reaction Test Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Stop the Box!! sells 1 one-off in-app purchase. Reaction Test Pro asks for nothing beyond the download.

Stop the Box!! holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Reaction Test Pro has 196 ratings behind it against 14, 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 100% of Stop the Box!!'s.

Reaction Test Pro ships an update every 9 months, Stop the Box!! every 5 weeks. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Reaction Test Pro | Stop the Box!! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (196 ratings)](https://appshunter.io/ios/app/reaction-test-pro/id493360516/reviews) | **[4.9 (14 ratings)](https://appshunter.io/ios/app/stop-the-box/id6473290037/reviews)** |
| Number of ratings | **196** | 14 |
| Positive reviews | 53.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Freedom Apps](https://appshunter.io/developer/396959214) | [Kevin Galarza](https://appshunter.io/developer/1021639965) |

## 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


### Stop the Box!!

[App page](https://appshunter.io/ios/app/stop-the-box/id6473290037)

A challenging game designed to test your focus and reflexes. It offers simple gameplay that is difficult to master, providing an engaging experience for players seeking a mental workout.

**Highlights:** Focus testing, Reflex challenges, Easy to learn gameplay, Difficult to master, Engaging experience

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Reaction Test Pro free?

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

### Is Stop the Box!! free?

Stop the Box!! is free to download, with in-app purchases available.

### Which has better reviews, Reaction Test Pro or Stop the Box!!?

Stop the Box!! is rated higher. Reaction Test Pro averages 4.3 out of 5 from 196 ratings, while Stop the Box!! averages 4.9 from 14 ratings.

### Do Reaction Test Pro or Stop the Box!! have ads?

Stop the Box!! shows ads; Reaction Test Pro does not.

### Which is updated more often, Reaction Test Pro or Stop the Box!!?

Reaction Test Pro ships an update every 9 months, and Stop the Box!! every 5 weeks. Most recently, Reaction Test Pro was updated on September 21, 2026 and Stop the Box!! on June 1, 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.*