# ReactionX vs Praep® ProPilot App

The clearest difference is review sentiment: ReactionX at 100% against Praep® ProPilot App's 0%. ReactionX also leads on rating (5.0 vs 2.0) and update cadence (every 6 weeks vs every 17 months). Praep® ProPilot App's advantage is iOS requirement (13.0 vs 15.1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReactionX holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 100% of ReactionX's written reviews are positive against 0% of Praep® ProPilot App's.

ReactionX ships an update every 6 weeks, Praep® ProPilot App every 17 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | ReactionX | Praep® ProPilot App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/reactionx/id1515855584/reviews)** | [2.0 (2 ratings)](https://appshunter.io/ios/app/praep-propilot-app/id1612635457/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 17 months |
| Monetization | Free | Free |
| Size | 34 MB | 27 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [学斌 赵](https://appshunter.io/developer/1514555505) | [PRAEP](https://appshunter.io/developer/1399550627) |

## What reviewers say

### ReactionX

[App page](https://appshunter.io/ios/app/reactionx/id1515855584)

Enhance your athletic performance with this app, designed to be used with specialized training lamps. Improve your speed and reaction times through professional sports training exercises.

**Highlights:** Professional sports training, Speed improvement, Reaction time enhancement, Compatible with training lamps hardware

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

**In-app purchases:** none


### Praep® ProPilot App

[App page](https://appshunter.io/ios/app/praep-propilot-app/id1612635457)

This app transforms physical training into interactive games. Track pushups with balance measurement, explore POV tracks for cycling and motorsports, and engage in core training games. Compete on leaderboards and earn awards.

**Highlights:** Pushup counting and balance measurement, Interactive POV track exploration for cycling/motorsports, Gamified core training, Scoreboard and awards, Balance visualization for weak spot identification

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ReactionX free?

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

### Is Praep® ProPilot App free?

Praep® ProPilot App is free to download, with no in-app purchases.

### Which has better reviews, ReactionX or Praep® ProPilot App?

ReactionX is rated higher. ReactionX averages 5.0 out of 5 from 3 ratings, while Praep® ProPilot App averages 2.0 from 2 ratings.

### Do ReactionX or Praep® ProPilot App have ads?

Neither ReactionX nor Praep® ProPilot App shows ads.

### Which is updated more often, ReactionX or Praep® ProPilot App?

ReactionX ships an update every 6 weeks, and Praep® ProPilot App every 17 months. Most recently, ReactionX was updated on November 3, 2026 and Praep® ProPilot App on November 3, 2026.

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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.*