# Reaction Time Test vs Avoid Blocks

The clearest difference is price: Reaction Time Test at Free against Avoid Blocks's $2.99. Reaction Time Test also leads on in-app purchases (none vs 3) and update cadence (every 3 months vs every 11 months). Avoid Blocks's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.6). On device support there is nothing between them.

Reaction Time Test is free to download; Avoid Blocks costs $2.99 up front. Avoid Blocks sells 3 one-off in-app purchases. Reaction Time Test asks for nothing beyond the download.

Reaction Time Test ships an update every 3 months, Avoid Blocks every 11 months. The most recent releases landed on September 23, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Reaction Time Test | Avoid Blocks |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/avoid-blocks-reflex-game/id6738196958/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | **Ad-supported** | Paid |
| Size | 13 MB | 41 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [Ethisham Niazi](https://appshunter.io/developer/1777866577) |

## What reviewers say

### Reaction Time Test

[App page](https://appshunter.io/ios/app/reaction-time-test-rtt/id1669730948)

Test and train your reflexes with this app. Simply tap the screen when a red square appears to measure your reaction speed and improve your concentration. Daily practice can enhance your reflexes, making it ideal for gamers.

**Highlights:** Reaction speed testing, Reflex training, Concentration improvement, Rank display, Daily practice recommended

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

**In-app purchases:** none


### Avoid Blocks

[App page](https://appshunter.io/ios/app/avoid-blocks-reflex-game/id6738196958)

Test your speed and strategy by dragging a white box to dodge rapidly falling red blocks. This game offers simple controls with an escalating challenge, perfect for quick plays or extended sessions to improve reaction time.

**Highlights:** Drag to dodge red blocks, Increasing speed challenge, Simple controls, hard to master, Reflex training, High score competition, Quick play sessions

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Retries | $0.99 | one-time |
| 500 Retries | $2.99 | one-time |
| 1000 Retries | $4.99 | one-time |


## Frequently asked questions

### Is Reaction Time Test free?

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

### Is Avoid Blocks free?

Avoid Blocks costs $2.99, and also offers in-app purchases.

### Do Reaction Time Test or Avoid Blocks have ads?

Reaction Time Test shows ads; Avoid Blocks does not.

### Which is updated more often, Reaction Time Test or Avoid Blocks?

Reaction Time Test ships an update every 3 months, and Avoid Blocks every 11 months. Most recently, Reaction Time Test was updated on September 23, 2026 and Avoid Blocks on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*