# Reaction training. vs QuietOS

The clearest difference is ads: QuietOS at none against Reaction training.'s shown. QuietOS also leads on update cadence (weekly vs monthly) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Reaction training. sells 7 in-app purchases, starting at $1.99 per month and QuietOS sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Reaction training. ships an update monthly, QuietOS weekly. The most recent releases landed on October 22, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Reaction training. | QuietOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (581 ratings)](https://appshunter.io/ios/app/reaction-training/id6462426671/reviews)** | — |
| Number of ratings | **581** | — |
| Positive reviews | 91.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 79 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Olena Gotsulyak](https://appshunter.io/developer/1699979294) | [WhatsYum Ltd](https://appshunter.io/developer/1636840081) |

## What reviewers say

### Reaction training.

[App page](https://appshunter.io/ios/app/reaction-training/id6462426671)

Enhance your cognitive abilities, focus, and reflexes with a variety of engaging puzzles and games. Improve decision-making, logic, and memory skills through fun, educational exercises suitable for all ages. Challenge friends in a two-player mode for interactive learning and friendly competition.

**Highlights:** Over 55 puzzle and reflex challenges, Two-player competitive mode, Adjustable training intensity, Comprehensive progress statistics, Color theme customization, Schulte table, math, and memory exercises

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Annual subscription | $5.99 | per year |
| VIP pass | $3.99 | one-time |
| VIP pass | $6.99 | one-time |
| VIP Access | $7.99 | one-time |
| VIP pass | $9.99 | one-time |
| VIP pass | $19.99 | one-time |

**What reviewers like**

- 🚀 Excellent reaction training
- 💰 Reasonable one-time premium payment
- 👍 Simple and effective
- 🤩 Funny and engaging
- ⚡ Helps improve reaction speed

**What reviewers complain about**

- 🐛 Inconsistent and inaccurate results in some levels
- 🔍 Difficulty level too high for some exercises
- 📺 Excessive ads in free version
- 🔞 Inappropriate ads shown

**Reported bugs**

- Click limit exercise not functioning properly
- Delayed response time in registering clicks

**Requested features**

- Colorblind mode
- Adjustable difficulty levels
- More interactive and fun UI
- Improved ball catch hit detection


### QuietOS

[App page](https://appshunter.io/ios/app/quietos/id6769613505)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $19.00 | per year |
| QuietOS Lifetime | $39.00 | one-time |


## Frequently asked questions

### Is Reaction training. free?

Reaction training. is free to download, with in-app purchases available.

### Is QuietOS free?

QuietOS is free to download, with in-app purchases available.

### Do Reaction training. or QuietOS have ads?

Reaction training. shows ads; QuietOS does not.

### Which is updated more often, Reaction training. or QuietOS?

Reaction training. ships an update monthly, and QuietOS weekly. Most recently, Reaction training. was updated on October 22, 2026 and QuietOS 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.*