Ext Ops Panel
Open dashboard

RPN Calculator

Chrome Web Store listing by SerigoSoft

A Chrome extension with 906 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
906
Rating
2.8 (31 ratings)
Users, last 30 days
-9
Rating, last 30 days
Steady over 30 days
Version
1.0.0.4
Updated in the store
2014-05-31
Published
2013-03-15
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
-9 since 02.10
897-923 · 18 readings
  1. 2026-10-04897
  2. 2026-10-08923
  3. 2026-10-09922
  4. 2026-10-10908
  5. 2026-10-13909
  6. 2026-10-16917
  7. 2026-10-17919
  8. 2026-10-18920
  9. 2026-10-19907
  10. 2026-10-20914
  11. 2026-10-22919
  12. 2026-10-23902
  13. 2026-10-24910
  14. 2026-10-25915
  15. 2026-10-28912
  16. 2026-10-29910
  17. 2026-10-30904
  18. 2026-11-01906
Rating
unchanged since 02.10
reviewsrating 2.81 · 18 readings
  1. 2026-10-04reviews31rating2.81
  2. 2026-10-08reviews31rating2.81
  3. 2026-10-09reviews31rating2.81
  4. 2026-10-10reviews31rating2.81
  5. 2026-10-13reviews31rating2.81
  6. 2026-10-16reviews31rating2.81
  7. 2026-10-17reviews31rating2.81
  8. 2026-10-18reviews31rating2.81
  9. 2026-10-19reviews31rating2.81
  10. 2026-10-20reviews31rating2.81
  11. 2026-10-22reviews31rating2.81
  12. 2026-10-23reviews31rating2.81
  13. 2026-10-24reviews31rating2.81
  14. 2026-10-25reviews31rating2.81
  15. 2026-10-28reviews31rating2.81
  16. 2026-10-29reviews31rating2.81
  17. 2026-10-30reviews31rating2.81
  18. 2026-11-01reviews31rating2.81
Users
-15 since 01.09
897-946 · 33 readings
  1. 2026-09-01921
  2. 2026-09-02938
  3. 2026-09-03942
  4. 2026-09-05946
  5. 2026-09-06924
  6. 2026-09-08927
  7. 2026-09-09923
  8. 2026-09-13915
  9. 2026-09-15936
  10. 2026-09-16935
  11. 2026-09-20921
  12. 2026-09-21928
  13. 2026-09-25935
  14. 2026-09-26922
  15. 2026-09-28915
  16. 2026-10-04897
  17. 2026-10-08923
  18. 2026-10-09922
  19. 2026-10-10908
  20. 2026-10-13909
  21. 2026-10-16917
  22. 2026-10-17919
  23. 2026-10-18920
  24. 2026-10-19907
  25. 2026-10-20914
  26. 2026-10-22919
  27. 2026-10-23902
  28. 2026-10-24910
  29. 2026-10-25915
  30. 2026-10-28912
  31. 2026-10-29910
  32. 2026-10-30904
  33. 2026-11-01906
Rating
unchanged since 01.09
reviewsrating 2.81 · 33 readings
  1. 2026-09-01reviews31rating2.81
  2. 2026-09-02reviews31rating2.81
  3. 2026-09-03reviews31rating2.81
  4. 2026-09-05reviews31rating2.81
  5. 2026-09-06reviews31rating2.81
  6. 2026-09-08reviews31rating2.81
  7. 2026-09-09reviews31rating2.81
  8. 2026-09-13reviews31rating2.81
  9. 2026-09-15reviews31rating2.81
  10. 2026-09-16reviews31rating2.81
  11. 2026-09-20reviews31rating2.81
  12. 2026-09-21reviews31rating2.81
  13. 2026-09-25reviews31rating2.81
  14. 2026-09-26reviews31rating2.81
  15. 2026-09-28reviews31rating2.81
  16. 2026-10-04reviews31rating2.81
  17. 2026-10-08reviews31rating2.81
  18. 2026-10-09reviews31rating2.81
  19. 2026-10-10reviews31rating2.81
  20. 2026-10-13reviews31rating2.81
  21. 2026-10-16reviews31rating2.81
  22. 2026-10-17reviews31rating2.81
  23. 2026-10-18reviews31rating2.81
  24. 2026-10-19reviews31rating2.81
  25. 2026-10-20reviews31rating2.81
  26. 2026-10-22reviews31rating2.81
  27. 2026-10-23reviews31rating2.81
  28. 2026-10-24reviews31rating2.81
  29. 2026-10-25reviews31rating2.81
  30. 2026-10-28reviews31rating2.81
  31. 2026-10-29reviews31rating2.81
  32. 2026-10-30reviews31rating2.81
  33. 2026-11-01reviews31rating2.81

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.

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

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

The publisher

SerigoSoft publishes 3 listings we track, 2k users between them.

  1. QwikNote SerigoSoft · published 2013-01-06 938 users ★ 4.3
  2. ComingDue Lite SerigoSoft · published 2013-03-12 180 users ★ 3.6

Like this one

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

  1. Mouseless Stack-Calculator App Describes nearly the same job, smaller audience 43 users ★ 3.3
  2. RPN Calculator Describes nearly the same job, smaller audience 86 users ★ 2.8
  3. Melanto Calculator Describes nearly the same job, with an established audience 10k users ★ 4.1
  4. RpnCalcExt Describes nearly the same job, smaller audience 11 users
  5. Melanto Calculator Describes nearly the same job, smaller audience 6k users ★ 4.2

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.

Connect it in a minute See what the panel does
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/iblaobcdcjnenokjemcodanggahddfnd/badge.svg)](https://extops.dev/extensions/iblaobcdcjnenokjemcodanggahddfnd)

HTML

<a href="https://extops.dev/extensions/iblaobcdcjnenokjemcodanggahddfnd"><img src="https://extops.dev/extensions/iblaobcdcjnenokjemcodanggahddfnd/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