# Reaction Time Test vs Inkstroop

The clearest difference is in-app purchases: Inkstroop at none against Reaction Time Test's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Reaction Time Test sells 3 in-app purchases, starting at $1.99 per month. Inkstroop asks for nothing beyond the download.

## The numbers

| Metric | Reaction Time Test | Inkstroop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 days |
| Size | 38 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Iuliia Arnautova](https://appshunter.io/developer/1891708128) | [BIN WANG](https://appshunter.io/developer/1881032464) |

## What reviewers say

### Reaction Time Test

[App page](https://appshunter.io/ios/app/reaction-time-test-reflex/id6761836276)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium | $8.99 | per year |
| Lifetime Premium | $12.99 | one-time |


### Inkstroop

[App page](https://appshunter.io/ios/app/inkstroop/id6771827113)

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

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Time Test free?

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

### Is Inkstroop free?

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

### Do Reaction Time Test or Inkstroop have ads?

Both Reaction Time Test and Inkstroop show 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.*