# Reaction Time vs 2 Sides Challenge

The clearest difference is in-app purchases: 2 Sides Challenge at none against Reaction Time's 2. Reaction Time's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Reaction Time sells 2 in-app purchases, starting at $3.99 per 7 days. 2 Sides Challenge asks for nothing beyond the download.

## The numbers

| Metric | Reaction Time | 2 Sides Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Size | 48 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ahmet Yagız Sarıdogan](https://appshunter.io/developer/1767264527) | [Dmitrii Nikolaev](https://appshunter.io/developer/1801292122) |

## What reviewers say

### Reaction Time

[App page](https://appshunter.io/ios/app/reaction-time-reflex-master/id6752227166)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Premium Yearly | $14.99 | per year |


### 2 Sides Challenge

[App page](https://appshunter.io/ios/app/2-sides-challenge/id6790892823)

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Time free?

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

### Is 2 Sides Challenge free?

2 Sides Challenge is free to download, with no in-app purchases.

### Do Reaction Time or 2 Sides Challenge have ads?

Neither Reaction Time nor 2 Sides Challenge shows ads.

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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.*