ReactionTest - Speed Test
How fast are your reflexes?
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Train your reflexes! How many milliseconds are you?
Train your reflexes! Test your reaction speed across three senses — sight, sound, and touch — measured precisely in milliseconds.
Tap the instant the screen turns green, the beep sounds, or you feel the vibration. Three attempts per test give you an accurate average reaction time.
WHO IT'S FOR
• Curious how fast your reflexes really are
• Warming up before esports or FPS gaming sessions
• Challenging friends and family to a reaction showdown
• Looking for a quick, game-like way to test yourself in a spare minute
THREE TEST MODES
• Visual — tap the instant the screen turns green
• Audio — tap the instant you hear the beep
• Haptic — tap the instant you feel the vibration
FEATURES
• Precise millisecond-accurate timing
• Average, fastest, and slowest of 3 attempts
• 5-tier rank: Ninja, Athlete, Fast, Average, Slow
• A cute character reacts to your results
• Visual bar graph for every attempt
• Share your score and challenge friends
• No sign-up — start testing instantly
Can you reach Ninja level? Find out now.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
• Added in-app language switching with support for 17 languages
• Improved ad display stability
• Minor bug fixes
The developer, BYNET, 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:
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 11.1 MB
- Category
- Entertainment
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- Provider
BYNET CO., LTD.
- BYNET CO., LTD. has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
- Copyright
- © 2026 BYNET