# GridLaunch - Reaction Game — Racing Start Reaction Test

> Racing Start Reaction Test (iPhone/iPad app by Bug Free Threads LLC.)

- Source: https://appshunter.io/ios/app/gridlaunch-reaction-game/id6812159633 (this page in markdown: same URL + `.md`)
- Developer: [Bug Free Threads LLC](https://appshunter.io/developer/1542259271)
- Category: Games, Sports, Racing, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 43 MB
- Languages: American English
- Released: 2026-09-21
- Data updated: 2026-10-14

## What is GridLaunch?

Think you have a fast reaction time? Prove it!

GridLaunch is a reaction game that puts you on the racing start grid. Watch the lights, wait for them to go out, and react as fast as you can.

But reaction time is only part of the challenge. Release the brake, control your throttle, and find the perfect launch. Every decision in GridLaunch can make the difference between a good start and a great one.

MASTER THE START
Watch the starting lights and react instantly when they go out. Every millisecond counts.

TEST YOUR REFLEXES
Measure your reaction time and push yourself to react faster.

PERFECT YOUR LAUNCH
Your reaction is only half the battle. Manage your throttle and chase the perfect racing start.

BEAT YOUR BEST
Set personal records and keep coming back to improve your time.

COMPETE ON THE LEADERBOARD 
See how your reaction time compare with other GridLaunch players.

Simple to learn. Difficult to master.

Watch. Wait. React. Launch.

How fast can you start?

## Is GridLaunch safe?

Not enough ratings yet to assess GridLaunch.

## Is GridLaunch legit?

GridLaunch - Reaction Game appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for GridLaunch is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.1.0 — 2026-10-12

Updated race launch reaction mechanics to allow race start with gas pedal only
Show tutorial screen for new users
Added mutable lights sound and engine sound

### 1.0.1 — 2026-09-22

bug fixes and performance improvements

### 1.0 — 2026-09-22

No release notes.

## More apps by Bug Free Threads LLC

- [uncrwd](https://appshunter.io/ios/app/uncrwd/id1542259269)
- [ParkLens: Parking Sign Scanner](https://appshunter.io/ios/app/parklens-parking-sign-scanner/id6760863330)

All apps by Bug Free Threads LLC: https://appshunter.io/developer/1542259271

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-14.*