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Accurate Ruler

Chrome Web Store listing by david.flinner

A Chrome extension with 40 000 users, an established extension.

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
40 000
Rating
4.1 (719 ratings)
Users, last 15 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
5.8.8
Updated in the store
2016-09-02
Published
2013-09-27
Manifest
V2
Browser access
2 permissions

How it has moved

Users
unchanged since 01.09
40k · 2 readings
  1. 2026-09-0140k
  2. 2026-09-1540k
Rating
unchanged since 01.09
reviewsrating 4.12 · 2 readings
  1. 2026-09-01reviews719rating4.12
  2. 2026-09-15reviews719rating4.12
Users
unchanged since 01.09
40k · 2 readings
  1. 2026-09-0140k
  2. 2026-09-1540k
Rating
unchanged since 01.09
reviewsrating 4.12 · 2 readings
  1. 2026-09-01reviews719rating4.12
  2. 2026-09-15reviews719rating4.12

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.

  • Show you notifications notifications
  • 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

david.flinner publishes 11 listings we track, 280k users between them. Listed website: freeonlineruler.com.

  1. Webcam david.flinner · published 2013-09-03 100k users ★ 3.7
  2. Camera david.flinner · Lifestyle · Art · published 2013-09-19 100k users ★ 3.8
  3. Light david.flinner · published 2013-09-05 10k users ★ 2.5
Show 5 more from this publisher
  1. HD Camera david.flinner · Lifestyle · Art · published 2016-09-20 10k users ★ 3.9
  2. Awesome Mirror david.flinner · published 2013-07-29 5k users ★ 4.1
  3. Note Easy david.flinner · published 2013-08-31 5k users ★ 3.6
  4. Makeup Mirror david.flinner · published 2013-09-02 4k users ★ 3.8
  5. Flashlight david.flinner · published 2013-02-04 4k users ★ 2.1

Like this one

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

  1. School Screen Tools by pan Artem Describes nearly the same job, smaller audience 17 users ★ 5.0
  2. Papa Jack's Focus Filter Describes nearly the same job, smaller audience 3 users
  3. WORLD CRUISE ACADEMY Screenshot & Screen Recorder Describes nearly the same job, smaller audience 4 users
  4. Scribbles Describes nearly the same job, smaller audience 43 users ★ 5.0
  5. Screen Canvas - Draw on any Web page Describes nearly the same job, smaller audience 3k users ★ 4.3

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?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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.