# Dynamix vs Reaction time trainer

The clearest difference is in-app purchases: Reaction time trainer at none against Dynamix's 17. Reaction time trainer also leads on rating (4.5 vs 4.3). Dynamix's advantage is ads (none vs shown) and review sentiment (68% vs 54%). On price, ratings volume, update cadence and chart position there is nothing between them.

Both are free to download. Dynamix sells 11 one-off in-app purchases. Reaction time trainer asks for nothing beyond the download.

Reaction time trainer holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 276 and 294 respectively. Written reviews complicate that: 68% of Dynamix's written reviews are positive against 54% of Reaction time trainer's, so the app with the better star average is not the one people write more warmly about.

Dynamix ships an update every 6 weeks, Reaction time trainer every 2 months. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Dynamix | Reaction time trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (276 ratings)](https://appshunter.io/ios/app/dynamix/id945955095/reviews) | **[4.5 (294 ratings)](https://appshunter.io/ios/app/reaction-time-trainer-rs/id1198194881/reviews)** |
| Number of ratings | 276 | **294** |
| Positive reviews | **67.8% of reviews** | 53.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | #182 | **#181** |
| Size | 1.7 GB | 8 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [C4Cat Entertainment Ltd.](https://appshunter.io/developer/945955094) | [Masaharu Tsukamoto](https://appshunter.io/developer/939316877) |

## What reviewers say

### Dynamix

[App page](https://appshunter.io/ios/app/dynamix/id945955095)

**Currently charting:** #182 Top Grossing · Music (US App Store)

Experience a unique rhythm game with a triple-dropping track design that lets you feel like you're composing the music as you play. This hardcore mobile music game offers a dynamic and engaging gameplay experience with a collection of original songs.

**Highlights:** Triple-dropping track design, Rhythmical and varying play style, Feel like composing music, Hong Kong original songs, Hardcore mobile music game

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Bits | $1.99 | one-time |
| Package Rising | $3.99 | one-time |
| 300 Bits | $3.99 | one-time |
| Package Evas | $3.99 | one-time |
| Package Four Horsemen | $3.99 | one-time |
| Package Horoscope | $3.99 | one-time |
| Package Piano | $3.99 | one-time |
| Package ArcStar Collection #2 | $3.99 | one-time |
| Package Z.H.D. Collaboration | $3.99 | one-time |
| 600 Bits | $7.99 | one-time |
| 1000 Bits | $11.99 | one-time |

**What reviewers like**

- 🎮 Fun and addictive gameplay
- 🎨 Visually appealing designs
- 🎶 Great music selection
- 💯 Challenging difficulties
- 👍 Beginner-friendly

**What reviewers complain about**

- 🐛 Crashes and sync issues
- 💰 Paywall for full game access
- 🙄 Intrusive ads
- 🤖 Unresponsive controls
- 🤔 Confusing menus and navigation

**Reported bugs**

- Game data loss after updates
- Compatibility issues with newer devices
- Persistent crashing on certain songs

**Requested features**

- Custom song creation
- Player vs player mode
- Adjustable timing windows
- More free song content


### Reaction time trainer

[App page](https://appshunter.io/ios/app/reaction-time-trainer-rs/id1198194881)

**Currently charting:** #181 Top Free · Music (US App Store)

Enhance your reflexes with a quick reaction test. Tap as many targets as possible within a 30-second timeframe. This training app is perfect for improving performance in games and sports, allowing you to compete with others.

**Highlights:** Reaction speed test, Tap targets quickly, 30-second challenges, Game Center login, Global rankings

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

**In-app purchases:** none

**What reviewers like**

- 👍 Effective aim trainer
- 👍 Improves reaction time
- 👍 Simple and effective
- 👍 Fun and addictive
- 👍 Good for stress relief

**What reviewers complain about**

-  광고 Excessive ads
- 広告 Ads interrupt gameplay
- 広告 Ads appear too frequently
- 広告 Ads are distracting
- 広告 Ads are intrusive

**Reported bugs**

- Targets spawn too close
- Buttons overlap and are hard to see
- Game lags or has visual glitches
- Game requires internet connection
- Fake ad rewards

**Requested features**

- More game modes and challenges
- Leaderboard fixes for cheaters
- Option to disable ads (paid)
- Horizontal screen support
- Better timing for ad displays


## Frequently asked questions

### Is Dynamix free?

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

### Is Reaction time trainer free?

Reaction time trainer is free to download, with no in-app purchases.

### Which has better reviews, Dynamix or Reaction time trainer?

Reaction time trainer is rated higher. Dynamix averages 4.3 out of 5 from 276 ratings, while Reaction time trainer averages 4.5 from 294 ratings.

### Do Dynamix or Reaction time trainer have ads?

Reaction time trainer shows ads; Dynamix does not.

### Which is updated more often, Dynamix or Reaction time trainer?

Dynamix ships an update every 6 weeks, and Reaction time trainer every 2 months. Most recently, Dynamix was updated on October 17, 2026 and Reaction time trainer on October 15, 2026.

### Which is more popular, Dynamix or Reaction time trainer?

Dynamix currently peaks at #182 in the App Store charts, and Reaction time trainer at #181. Chart position reflects recent download velocity rather than total install base.

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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.*