# Impossible Dial vs Reflex

The clearest difference is in-app purchases: Reflex at none against Impossible Dial's 1. Impossible Dial's advantage is update cadence (fortnightly vs every 27 months) and iOS requirement (8.1 vs 11.0). On price, ads and device support there is nothing between them.

Both are free to download. Impossible Dial sells 1 one-off in-app purchase. Reflex asks for nothing beyond the download.

Impossible Dial ships an update fortnightly, Reflex every 27 months. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Impossible Dial | Reflex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (59 ratings)](https://appshunter.io/ios/app/impossible-dial-brain-reflex-and-cognitive-training/id950261452/reviews)** | — |
| Number of ratings | **59** | — |
| Positive reviews | 50.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 27 months |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 27 MB |
| Requires iOS | **8.1** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [App Holdings](https://appshunter.io/developer/808581339) | [RulTech Solutions Private Limited](https://appshunter.io/developer/625283934) |

## What reviewers say

### Impossible Dial

[App page](https://appshunter.io/ios/app/impossible-dial-brain-reflex-and-cognitive-training/id950261452)

This game challenges your reflexes and cognitive skills by requiring you to tap when an arrow matches the color of its adjacent dial segment. It's designed to enhance focus, improve short-term memory, and boost attention span. Compete for high scores in this engaging brain training experience.

**Highlights:** Improves focus, Enhances short-term memory, Develops mental reflexes, Helps with attention span, Addictive gameplay

**Features:** macOS Compatibility

**In-app purchases (1)**

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

**What reviewers like**

- 🚀 Addictive and challenging
- 👍 Simple but fun gameplay
- 🎨 Visually appealing

**What reviewers complain about**

- 🙄 Excessive ads that disrupt gameplay
- 🐛 Crashes and glitches
- ⏱️ Ads appear during gameplay, causing loss of progress

**Reported bugs**

- Game crashes when opening
- Dial stops responding during gameplay
- Ads appear even with no internet connection

**Requested features**

- Option to disable ads for a fee
- Ability to pause game during ads
- Improved ad placement (e.g. between games instead of during)


### Reflex

[App page](https://appshunter.io/ios/app/reflex-game/id1464656832)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Impossible Dial free?

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

### Is Reflex free?

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

### Do Impossible Dial or Reflex have ads?

Neither Impossible Dial nor Reflex shows ads.

### Which is updated more often, Impossible Dial or Reflex?

Impossible Dial ships an update fortnightly, and Reflex every 27 months. Most recently, Impossible Dial was updated on October 16, 2026 and Reflex on October 10, 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.*