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Brain Teasers

Chrome Web Store listing by Learn 101

A Chrome extension with 1 000 users, a small but real audience.

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
1 000
Rating
3.6 (9 ratings)
Users, last 17 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1
Updated in the store
2014-09-26
Published
2013-10-14
Manifest
V2
Browser access
1 permission

How it has moved

Users
unchanged since 01.09
1k · 2 readings
  1. 2026-09-011k
  2. 2026-09-171k
Rating
unchanged since 01.09
reviewsrating 3.56 · 2 readings
  1. 2026-09-01reviews9rating3.56
  2. 2026-09-17reviews9rating3.56
Users
unchanged since 01.09
1k · 2 readings
  1. 2026-09-011k
  2. 2026-09-171k
Rating
unchanged since 01.09
reviewsrating 3.56 · 2 readings
  1. 2026-09-01reviews9rating3.56
  2. 2026-09-17reviews9rating3.56

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 without the usual size limit unlimitedStorage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Learn 101 publishes 19 listings we track, 30k users between them. Listed website: happybrain.org.

  1. Learn English Learn 101 · published 2013-08-26 10k users ★ 4.0
  2. Learn Spanish Learn 101 · published 2013-08-18 5k users ★ 3.9
  3. Learn German Learn 101 · published 2013-08-26 3k users ★ 3.8
Show 5 more from this publisher
  1. Learn Arabic Learn 101 · published 2013-08-17 2k users ★ 3.9
  2. Brain Games Learn 101 · published 2013-11-23 2k users ★ 2.6
  3. IQ Test Learn 101 · published 2013-11-05 2k users ★ 2.5
  4. Learn French Learn 101 · published 2013-08-26 1k users ★ 3.5
  5. Learn Dutch Learn 101 · published 2013-08-26 700 users ★ 5.0

Like this one

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

  1. Stay Sharp Describes nearly the same job, smaller audience 15 users ★ 5.0
  2. Twinoo Brain Training - Test your Brain Describes nearly the same job, smaller audience 7k users ★ 3.8
  3. Mind28: The Cognitive Pause for ChatGPT Describes nearly the same job, smaller audience 5 users ★ 1.0
  4. Dual N Back Describes nearly the same job, smaller audience 35 users ★ 5.0
  5. Reaction Tester Describes nearly the same job, smaller audience 55 users

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.

Is this your extension?

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See what the panel does

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.