GridLaunch - Reaction Game
Racing Start Reaction Test
Free · Designed for iPad. Not verified for macOS.
Lights out. React. GridLaunch. Chase your fastest race start reaction time and climb the leaderboard. How fast can you react?
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?
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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
The developer, Bug Free Threads LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bug Free Threads LLC
- Size
- 45.3 MB
- Category
- Racing
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- This app is rated 4+ with content restrictions.
Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls. - In-App Controls
Age Assurance
Contains
Advertising
- Copyright
- © 2026 Bug Free Threads LLC