# Reaction Time vs JET JUMP!

The clearest difference is in-app purchases: JET JUMP! at none against Reaction Time's 1. JET JUMP! also leads on iOS requirement (11.0 vs 15.6). Reaction Time's advantage is device support. On price there is nothing between them.

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

## The numbers

| Metric | Reaction Time | JET JUMP! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 10 MB | 69 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | — |
| Age rating | 4+ | 4+ |
| Developer | [KidDotCo](https://appshunter.io/developer/819246599) | [Garhi Japan K.K.](https://appshunter.io/developer/1444709284) |

## 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 |


### JET JUMP!

[App page](https://appshunter.io/ios/app/jet-jump/id6482284257)

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Time free?

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

### Is JET JUMP! free?

JET JUMP! is free to download, with no in-app purchases.

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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.*