# Dynamix vs Simple Reaction Timer

The clearest difference is in-app purchases: Simple Reaction Timer at none against Dynamix's 17. Simple Reaction Timer also leads on update cadence (daily vs every 6 weeks). Dynamix's advantage is ads (none vs shown) and iOS requirement (11.0 vs 17.6). On price and device support there is nothing between them.

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

Dynamix ships an update every 6 weeks, Simple Reaction Timer daily. The most recent releases landed on September 30, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Dynamix | Simple Reaction Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (276 ratings)](https://appshunter.io/ios/app/dynamix/id945955095/reviews)** | — |
| Number of ratings | **276** | — |
| Positive reviews | 67.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 1.7 GB | 10 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [C4Cat Entertainment Ltd.](https://appshunter.io/developer/945955094) | [ANDREW MARTYN BANNER](https://appshunter.io/developer/1785719851) |

## What reviewers say

### Dynamix

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

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


### Simple Reaction Timer

[App page](https://appshunter.io/ios/app/simple-reaction-timer/id6752825952)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dynamix free?

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

### Is Simple Reaction Timer free?

Simple Reaction Timer is free to download, with no in-app purchases.

### Do Dynamix or Simple Reaction Timer have ads?

Simple Reaction Timer shows ads; Dynamix does not.

### Which is updated more often, Dynamix or Simple Reaction Timer?

Dynamix ships an update every 6 weeks, and Simple Reaction Timer daily. Most recently, Dynamix was updated on September 30, 2026 and Simple Reaction Timer on September 8, 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.*