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Screenshots

  • ReactionTimeChecker screenshot 1
  • ReactionTimeChecker screenshot 2
  • ReactionTimeChecker screenshot 3
  • ReactionTimeChecker screenshot 4

About ReactionTimeChecker

[What is this game?] -This game can test your earliness of a reaction(reflexes). [How to Play] -First,You can see 25 buttons(5*5). -When a game starts,any one of the 25 buttons color will change to PINK. -You TAP the glowing pink button as soon as possible! -After the game ended, you can see your SCORE and EVALUATION(Japanese KANJI). [Online Ranking] This app will automatically upload your play results to the online ranking server. If you do not agree to the automatic registration on the online ranking server, please refrain from using this app. The data uploaded to the server is as follows. 1. The name entered on the title screen (If you do not enter the name, it will be automatically registered with the name "unknown".) 2. Play result (average reaction time) In addition, please check the following privacy policy. https://www.nscnet.jp/privacyPolicy.html *If you are using iOS 14.5 or later, a dialog asking for tracking permission will be displayed at the first startup. This setting can be confirmed and changed in the "Settings" app, "Privacy", and "Tracking". Production: NSC, K.K. If you have any problems or requests, please check the contents of the “Contact Us” page on our website and send us an e-mail. Click here for “Contact Us”: https://www.nscnet.jp/inquiry.html

What’s new

Version 5.1 · Updated July 23, 2025

- Layout adjustments. - Fixed bugs. Supported iOS 15.6 or later from Ver. 5.1.

App privacy

The developer, NSC, K.K., reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location: Coarse Location
  • Identifiers: Device ID
  • Usage Data: Product Interaction, Advertising Data
  • Diagnostics: Crash Data, Performance Data

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Location: Coarse Location
  • Identifiers: Device ID
  • Usage Data: Product Interaction, Advertising Data
  • Diagnostics: Performance Data

Used for: Third-Party Advertising, Analytics

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data
  • User Content: Gameplay Content

Used for: Third-Party Advertising, Analytics, App Functionality

Alternatives to ReactionTimeChecker

Looking for apps like ReactionTimeChecker? Here are 6 similar apps on the App Store. The highest rated is Fast Reflex - Test your BRAIN (4.5/5), and 5 of the 6 are free to download.

ReactionTimeChecker vs. alternatives
App Rating Price Last updated Compare
ReactionTimeChecker 1.0 / 5 (1 rating) Free July 23, 2025
Tapd: A Coordination Game 4.0 / 5 (29) Free Oct 26, 2026 Compare
Reflex-Game – Free Oct 20, 2023 Compare
Reaction Time - Reflex Master – Free Sep 18, 2025 Compare
Hot Button - Reaction Test 2.5 / 5 (4) Free Jan 12, 2024 Compare
Fast Reflex - Test your BRAIN 4.5 / 5 (47) 0.99 USD Jan 19, 2025 Compare
Reagrid – Free Mar 11, 2026 Compare

Compare ReactionTimeChecker with the top alternatives: ratings, updates, ASO score and keyword gaps →