Ext Ops Panel
Open the app

Addition and Subtraction

Chrome extension by biplobsd11 · Lifestyle · Fun

  • Featured
  • Established publisher

A Chrome extension in Lifestyle · Fun with 27 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 3 screenshots

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

Users
27
Rating
not rated yet
Users, last 15 days
+2
Version
1.2
Updated in the store
2023-07-27
Published
2023-07-25
Manifest
V3
Browser access
2 permissions

How it has moved

Users
+2 since 31.08
24-28 · 5 readings
  1. 2026-08-3125
  2. 2026-09-0424
  3. 2026-09-0928
  4. 2026-09-1027
  5. 2026-09-1427
Users
+2 since 31.08
24-28 · 5 readings
  1. 2026-08-3125
  2. 2026-09-0424
  3. 2026-09-0928
  4. 2026-09-1027
  5. 2026-09-1427

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.

  • Sign you in with a Google account identity
  • Store data in your browser storage

The full permission history for this extension

What changed recently

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

The publisher

biplobsd11 publishes 5 listings we track, 10k users between them. Listed website: biplobsd.me.

  1. Youtube Subscriptions Transfer biplobsd11 · Productivity · Tools · published 2023-07-13 10k users ★ 4.9
  2. YGPT: YouTube GPT biplobsd11 · Productivity · Tools · published 2023-11-27 137 users
  3. BLC Auto Login biplobsd11 · Productivity · Workflow · published 2023-07-12 13 users
Show 1 more from this publisher
  1. WebMerge - Multi-Website Feed Aggregator biplobsd11 · Productivity · Tools · published 2026-04-23 12 users

Like this one

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

  1. BrainBoost Math Describes nearly the same job, smaller audience 6 users ★ 5.0
  2. Math Quiz Extension Describes nearly the same job, smaller audience 6 users
  3. Math Booster Describes nearly the same job, smaller audience 3 users
  4. Math for Brain Describes nearly the same job, smaller audience 13 users ★ 5.0
  5. Math Game Describes nearly the same job, smaller audience 5 users (last published figure)

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.