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Reaction Time Test

Chrome extension by weekdaysdevtwo · Productivity · Education

A Chrome extension in Productivity · Education with 4 users, barely installed.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
4
Rating
not rated yet
Users, last 7 days
+4
Version
1.0.2
Updated in the store
2026-09-12
Published
2026-09-09
Manifest
V3
Browser access
1 permission

How it has moved

Users
+4 since 10.09
0-4 · 4 readings
2026-09-10: appeared in the store2026-09-11: released 1.0.12026-09-12: released 1.0.2
  1. 2026-09-100appeared in the store
  2. 2026-09-131
  3. 2026-09-154
  4. 2026-09-164
Users
+4 since 10.09
0-4 · 4 readings
2026-09-10: appeared in the store2026-09-11: released 1.0.12026-09-12: released 1.0.2
  1. 2026-09-100appeared in the store
  2. 2026-09-131
  3. 2026-09-154
  4. 2026-09-164

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.0.2
  2. Version 1.0.1

What changed recently

  1. Released version 1.0.2 (was 1.0.1)
  2. Package size changed
  3. Store badges changed
Show the remaining 2
  1. Released version 1.0.1 (was 1.0.0)
  2. Appeared in the store

The publisher

weekdaysdevtwo publishes 4 listings we track, 56 users between them. Listed website: brainexerciseapp.com.

  1. Dual N Back weekdaysdevtwo · Productivity · Education · published 2026-05-05 35 users ★ 5.0
  2. IQ TEST FREE weekdaysdevtwo · Productivity · Education · published 2026-07-23 17 users
  3. Stroop Test weekdaysdevtwo · Productivity · Education · published 2026-09-11 audience not published

Like this one

Listings the catalog judges closest in what they say they do.

  1. Reaction Time Test Describes nearly the same job, smaller audience 5 users
  2. Reaction Time New Tab Describes nearly the same job, smaller audience 3 users (last published figure)
  3. Reaction Time Tester Describes nearly the same job, smaller audience 101 users ★ 5.0
  4. Reaction Tester Describes nearly the same job, smaller audience 60 users
  5. Stroop Test Describes a similar job audience not published

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.