Ext Ops Panel
Open dashboard

Mouseless Stack-Calculator App

Chrome Web Store listing by frans schrijver

A Chrome extension with 43 users, barely installed. Audience over the last 30 days: -9.

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
43
Rating
3.3 (7 ratings)
Users, last 30 days
-9
Rating, last 30 days
Steady over 30 days
Version
0.810
Updated in the store
2016-12-28
Published
2014-08-30
Manifest
V2
Browser access
2 permissions

How it has moved

Users
-9 since 02.10
43-57 · 17 readings
  1. 2026-10-0453
  2. 2026-10-0851
  3. 2026-10-0950
  4. 2026-10-1044
  5. 2026-10-1346
  6. 2026-10-1652
  7. 2026-10-1753
  8. 2026-10-1855
  9. 2026-10-1952
  10. 2026-10-2053
  11. 2026-10-2155
  12. 2026-10-2257
  13. 2026-10-2351
  14. 2026-10-2650
  15. 2026-10-2849
  16. 2026-10-2947
  17. 2026-11-0143
Rating
unchanged since 02.10
reviewsrating 3.29 · 17 readings
  1. 2026-10-04reviews7rating3.29
  2. 2026-10-08reviews7rating3.29
  3. 2026-10-09reviews7rating3.29
  4. 2026-10-10reviews7rating3.29
  5. 2026-10-13reviews7rating3.29
  6. 2026-10-16reviews7rating3.29
  7. 2026-10-17reviews7rating3.29
  8. 2026-10-18reviews7rating3.29
  9. 2026-10-19reviews7rating3.29
  10. 2026-10-20reviews7rating3.29
  11. 2026-10-21reviews7rating3.29
  12. 2026-10-22reviews7rating3.29
  13. 2026-10-23reviews7rating3.29
  14. 2026-10-26reviews7rating3.29
  15. 2026-10-28reviews7rating3.29
  16. 2026-10-29reviews7rating3.29
  17. 2026-11-01reviews7rating3.29
Users
-14 since 31.08
43-60 · 31 readings
  1. 2026-08-3157
  2. 2026-09-0454
  3. 2026-09-0656
  4. 2026-09-0757
  5. 2026-09-0856
  6. 2026-09-1054
  7. 2026-09-1357
  8. 2026-09-1560
  9. 2026-09-1756
  10. 2026-09-2053
  11. 2026-09-2149
  12. 2026-09-2548
  13. 2026-09-2650
  14. 2026-09-2852
  15. 2026-10-0453
  16. 2026-10-0851
  17. 2026-10-0950
  18. 2026-10-1044
  19. 2026-10-1346
  20. 2026-10-1652
  21. 2026-10-1753
  22. 2026-10-1855
  23. 2026-10-1952
  24. 2026-10-2053
  25. 2026-10-2155
  26. 2026-10-2257
  27. 2026-10-2351
  28. 2026-10-2650
  29. 2026-10-2849
  30. 2026-10-2947
  31. 2026-11-0143
Rating
unchanged since 31.08
reviewsrating 3.29 · 31 readings
  1. 2026-08-31reviews7rating3.29
  2. 2026-09-04reviews7rating3.29
  3. 2026-09-06reviews7rating3.29
  4. 2026-09-07reviews7rating3.29
  5. 2026-09-08reviews7rating3.29
  6. 2026-09-10reviews7rating3.29
  7. 2026-09-13reviews7rating3.29
  8. 2026-09-15reviews7rating3.29
  9. 2026-09-17reviews7rating3.29
  10. 2026-09-20reviews7rating3.29
  11. 2026-09-21reviews7rating3.29
  12. 2026-09-25reviews7rating3.29
  13. 2026-09-26reviews7rating3.29
  14. 2026-09-28reviews7rating3.29
  15. 2026-10-04reviews7rating3.29
  16. 2026-10-08reviews7rating3.29
  17. 2026-10-09reviews7rating3.29
  18. 2026-10-10reviews7rating3.29
  19. 2026-10-13reviews7rating3.29
  20. 2026-10-16reviews7rating3.29
  21. 2026-10-17reviews7rating3.29
  22. 2026-10-18reviews7rating3.29
  23. 2026-10-19reviews7rating3.29
  24. 2026-10-20reviews7rating3.29
  25. 2026-10-21reviews7rating3.29
  26. 2026-10-22reviews7rating3.29
  27. 2026-10-23reviews7rating3.29
  28. 2026-10-26reviews7rating3.29
  29. 2026-10-28reviews7rating3.29
  30. 2026-10-29reviews7rating3.29
  31. 2026-11-01reviews7rating3.29

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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.

  • Declares http://www.ecb.europa.eu/
  • 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

frans schrijver publishes 4 listings we track, 7k users between them.

  1. Radio Station-to-Station Ext frans schrijver · Lifestyle · Fun · published 2017-12-10 6k users ★ 4.3
  2. Mouseless Stack-Calculator Ext frans schrijver · Lifestyle · Household · published 2010-02-05 1k users ★ 4.3
  3. Smart Web History frans schrijver · Productivity · Tools · published 2023-10-24 138 users ★ 3.5

Like this one

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

  1. PocketCalc — Mini Calculator Describes nearly the same job, smaller audience 26 users
  2. Calculator – Smart, Fast & Scientific Describes nearly the same job, smaller audience 4 users (last published figure)
  3. SwiftCalc Describes nearly the same job, smaller audience 6 users ★ 5.0
  4. RPN Calculator Describes nearly the same job, smaller audience 83 users ★ 2.8
  5. 1Math: Scientific Calculator & Converter Describes nearly the same job, smaller audience 25 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.

Want this mark on your extension in our catalog?

Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works

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

Add a badge to your README or site

The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/ddnipcobkljdmdbbobgpbeakhemjmbdm/badge.svg)](https://extops.dev/extensions/ddnipcobkljdmdbbobgpbeakhemjmbdm)

HTML

<a href="https://extops.dev/extensions/ddnipcobkljdmdbbobgpbeakhemjmbdm"><img src="https://extops.dev/extensions/ddnipcobkljdmdbbobgpbeakhemjmbdm/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built