# CRJ Checklists vs Reaction Time Test

The clearest difference is price: Reaction Time Test at Free against CRJ Checklists's $0.99. Reaction Time Test also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (14.0 vs 17.5). CRJ Checklists's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Reaction Time Test is free to download; CRJ Checklists costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CRJ Checklists ships an update every 2 months, Reaction Time Test every 4 days. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | CRJ Checklists | Reaction Time Test |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.5 (74 ratings)](https://appshunter.io/ios/app/reaction-time-test-how-fast/id6466617945/reviews)** |
| Number of ratings | — | **74** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Ad-supported |
| Size | 3 MB | 30 MB |
| Requires iOS | 17.5 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lukasz Musial](https://appshunter.io/developer/670046692) | [HUNG-PIN YU](https://appshunter.io/developer/963095666) |

## What reviewers say

### CRJ Checklists

[App page](https://appshunter.io/ios/app/crj-checklists/id1350762953)

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

**In-app purchases:** none


### Reaction Time Test

[App page](https://appshunter.io/ios/app/reaction-time-test-how-fast/id6466617945)

Measure your reflexes by tapping as quickly as possible when a visual cue appears. Compete against yourself and challenge your personal best.

**Highlights:** Reaction time measurement, Tap when green cue appears, Challenge personal limits, Simple gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CRJ Checklists free?

CRJ Checklists costs $0.99, with no in-app purchases.

### Is Reaction Time Test free?

Reaction Time Test is free to download, with no in-app purchases.

### Do CRJ Checklists or Reaction Time Test have ads?

Reaction Time Test shows ads; CRJ Checklists does not.

### Which is updated more often, CRJ Checklists or Reaction Time Test?

CRJ Checklists ships an update every 2 months, and Reaction Time Test every 4 days. Most recently, CRJ Checklists was updated on November 2, 2026 and Reaction Time Test on November 7, 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.*