# Reaction Time vs World Sichuan

The clearest difference is in-app purchases: World Sichuan at none against Reaction Time's 1. Reaction Time's advantage is device support (5 vs 3). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Reaction Time sells 1 one-off in-app purchase. World Sichuan asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Reaction Time | World Sichuan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 10 MB | 33 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KidDotCo](https://appshunter.io/developer/819246599) | [Hyunjoon Seo](https://appshunter.io/developer/1868320363) |

## What reviewers say

### Reaction Time

[App page](https://appshunter.io/ios/app/reaction-time-tap-zero-zero/id1090740861)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Can You Find The Cheese? | $1.99 | one-time |


### World Sichuan

[App page](https://appshunter.io/ios/app/world-sichuan/id6758711065)

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Time free?

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

### Is World Sichuan free?

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

### Do Reaction Time or World Sichuan have ads?

Neither Reaction Time nor World Sichuan shows ads.

### Which is updated more often, Reaction Time or World Sichuan?

Reaction Time ships an update every 2 months, and World Sichuan every 2 months. Most recently, Reaction Time was updated on October 6, 2026 and World Sichuan on October 25, 2026.

---

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