# Flash Eye vs S

The clearest difference is rating: S at 4.4 against Flash Eye's 1.5. S also leads on update cadence (every 3 months vs every 8 months) and ratings volume (12 vs 2). Flash Eye's advantage is iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

S holds the better App Store score, 4.4 against 1.5. That said, the two scores are not equally well evidenced: S has 12 ratings behind it against 2, so its average is the more settled of the two.

Flash Eye ships an update every 8 months, S every 3 months. The most recent releases landed on June 8, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Flash Eye | S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/flash-eye/id861246441/reviews) | **[4.4 (12 ratings)](https://appshunter.io/ios/app/s-reflex-test-4-reaction-time/id1248289644/reviews)** |
| Number of ratings | 2 | **12** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Ad-supported | Ad-supported |
| Size | 30 MB | 12 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hit Apps](https://appshunter.io/developer/378755417) | [Masaharu Tsukamoto](https://appshunter.io/developer/939316877) |

## What reviewers say

### Flash Eye

[App page](https://appshunter.io/ios/app/flash-eye/id861246441)

Test your reflexes by tapping circles that appear randomly. Compete against your own speed in this simple yet challenging game.

**Highlights:** Reflex testing, Speed tapping, Random circle placement, Simple gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### S

[App page](https://appshunter.io/ios/app/s-reflex-test-4-reaction-time/id1248289644)

Enhance your reflexes and reaction time with this simple target-shooting game. Practice anywhere to improve your performance in games and sports. Compete with others by logging into Game Center and joining the rankings.

**Highlights:** Target shooting gameplay, Reflex and reaction time training, Practice anywhere, Game Center login, Global rankings

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

**In-app purchases:** none


## Frequently asked questions

### Is Flash Eye free?

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

### Is S free?

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

### Which has better reviews, Flash Eye or S?

S is rated higher. Flash Eye averages 1.5 out of 5 from 2 ratings, while S averages 4.4 from 12 ratings.

### Do Flash Eye or S have ads?

Both Flash Eye and S show ads.

### Which is updated more often, Flash Eye or S?

Flash Eye ships an update every 8 months, and S every 3 months. Most recently, Flash Eye was updated on June 8, 2026 and S on September 26, 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.*