# Reaction Speed Reflex Trainer vs Fast Reflex

Reaction Speed Reflex Trainer and Fast Reflex both sit at 4.6 stars, but that hides the real split: 100% of Fast Reflex's written reviews are positive against 53% of Reaction Speed Reflex Trainer's. Fast Reflex also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 3 months). Reaction Speed Reflex Trainer's advantage is price (Free vs $0.99) and ratings volume (1.5K vs 47). On rating, in-app purchases and device support there is nothing between them.

Reaction Speed Reflex Trainer is free to download; Fast Reflex costs $0.99 up front. Reaction Speed Reflex Trainer sells 4 in-app purchases, starting at $0.99 per 7 days and Fast Reflex sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Reaction Speed Reflex Trainer holds the better App Store score, 4.6 against 4.5. That said, the two scores are not equally well evidenced: Reaction Speed Reflex Trainer has 1.5K ratings behind it against 47, so its average is the more settled of the two. Written reviews complicate that: 53% of Reaction Speed Reflex Trainer's written reviews are positive against 100% of Fast Reflex's, so the app with the better star average is not the one people write more warmly about.

Reaction Speed Reflex Trainer ships an update every 3 months, Fast Reflex every 2 weeks. The most recent releases landed on November 8, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Reaction Speed Reflex Trainer | Fast Reflex |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (1.5K ratings)](https://appshunter.io/ios/app/reaction-speed-reflex-trainer/id1250540980/reviews)** | [4.5 (47 ratings)](https://appshunter.io/ios/app/fast-reflex-test-your-brain/id1426315814/reviews) |
| Number of ratings | **1.5K** | 47 |
| Positive reviews | 53.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 27 MB | 76 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vicki Partridge](https://appshunter.io/developer/1114861973) | [Radoslaw Kubas](https://appshunter.io/developer/1643306872) |

## What reviewers say

### Reaction Speed Reflex Trainer

[App page](https://appshunter.io/ios/app/reaction-speed-reflex-trainer/id1250540980)

Sharpen your reflexes and boost reaction speed with engaging game modes. Measure your reaction time to the millisecond, compete on global leaderboards, and track your progress. Ideal for improving focus, training reflexes, or simply for fun.

**Highlights:** Reaction time measurement, Multiple game modes, Global leaderboards, Progress tracking, Focus and reflex training

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 🚀 Helps improve reaction time
- 👍 Simple and straightforward
- 👍 Clean interface
- 👍 Useful for athletes and gamers

**What reviewers complain about**

- 🐛 Inaccurate timing and reaction time tracking
- 🔍 Excessive ads that interfere with gameplay
- 💰 Paid subscription required for full features
- 🐛 Crashes and bugs after purchasing ad-free version

**Reported bugs**

- Reaction time not updating correctly
- Crashes when trying to use paid features
- Ads continue to show even after purchasing ad-free version

**Requested features**

- Track personal best reaction time
- Add more game modes and challenges
- Improve ad placement and reduce interruptions


### Fast Reflex

[App page](https://appshunter.io/ios/app/fast-reflex-test-your-brain/id1426315814)

This game challenges your reaction speed and hand-eye coordination with precise testing down to a millionth of a second. Compete globally on leaderboards and explore unique tests to boost focus and dexterity.

**Highlights:** Precise reflex testing, Global leaderboards, Telepathy test, Enhances focus and dexterity, Simple interface, Quick mental exercises

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Reaction Speed Reflex Trainer free?

Reaction Speed Reflex Trainer is free to download, with in-app purchases available.

### Is Fast Reflex free?

Fast Reflex costs $0.99, and also offers in-app purchases.

### Which has better reviews, Reaction Speed Reflex Trainer or Fast Reflex?

Reaction Speed Reflex Trainer is rated higher. Reaction Speed Reflex Trainer averages 4.6 out of 5 from 1.5K ratings, while Fast Reflex averages 4.5 from 47 ratings.

### Do Reaction Speed Reflex Trainer or Fast Reflex have ads?

Reaction Speed Reflex Trainer shows ads; Fast Reflex does not.

### Which is updated more often, Reaction Speed Reflex Trainer or Fast Reflex?

Reaction Speed Reflex Trainer ships an update every 3 months, and Fast Reflex every 2 weeks. Most recently, Reaction Speed Reflex Trainer was updated on November 8, 2026 and Fast Reflex on November 2, 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.*