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Lumo Quick Calculator

Chrome extension · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 5 users, barely installed. Audience over the last 30 days: +1.

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
5
Rating
5.0 (1 ratings)
Users, last 30 days
+1
Rating, last 30 days
Steady over 30 days
Version
1.0
Updated in the store
2025-10-15
Published
2025-10-15
Manifest
V3
Browser access
No permissions declared

How it has moved

Users
+1 since 01.10
3-6 · 15 readings
  1. 2026-10-045
  2. 2026-10-084
  3. 2026-10-095
  4. 2026-10-104
  5. 2026-10-135
  6. 2026-10-186
  7. 2026-10-195
  8. 2026-10-216
  9. 2026-10-225
  10. 2026-10-246
  11. 2026-10-255
  12. 2026-10-283
  13. 2026-10-294
  14. 2026-10-305
  15. 2026-10-315
Rating
unchanged since 01.10
reviewsrating 5.00 · 15 readings
  1. 2026-10-04reviews1rating5.00
  2. 2026-10-08reviews1rating5.00
  3. 2026-10-09reviews1rating5.00
  4. 2026-10-10reviews1rating5.00
  5. 2026-10-13reviews1rating5.00
  6. 2026-10-18reviews1rating5.00
  7. 2026-10-19reviews1rating5.00
  8. 2026-10-21reviews1rating5.00
  9. 2026-10-22reviews1rating5.00
  10. 2026-10-24reviews1rating5.00
  11. 2026-10-25reviews1rating5.00
  12. 2026-10-28reviews1rating5.00
  13. 2026-10-29reviews1rating5.00
  14. 2026-10-30reviews1rating5.00
  15. 2026-10-31reviews1rating5.00
Users
+1 since 01.09
3-6 · 24 readings
  1. 2026-09-014
  2. 2026-09-043
  3. 2026-09-054
  4. 2026-09-074
  5. 2026-09-085
  6. 2026-09-154
  7. 2026-09-173
  8. 2026-09-205
  9. 2026-09-284
  10. 2026-10-045
  11. 2026-10-084
  12. 2026-10-095
  13. 2026-10-104
  14. 2026-10-135
  15. 2026-10-186
  16. 2026-10-195
  17. 2026-10-216
  18. 2026-10-225
  19. 2026-10-246
  20. 2026-10-255
  21. 2026-10-283
  22. 2026-10-294
  23. 2026-10-305
  24. 2026-10-315
Rating
unchanged since 01.09
reviewsrating 5.00 · 24 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-04reviews1rating5.00
  3. 2026-09-05reviews1rating5.00
  4. 2026-09-07reviews1rating5.00
  5. 2026-09-08reviews1rating5.00
  6. 2026-09-15reviews1rating5.00
  7. 2026-09-17reviews1rating5.00
  8. 2026-09-20reviews1rating5.00
  9. 2026-09-28reviews1rating5.00
  10. 2026-10-04reviews1rating5.00
  11. 2026-10-08reviews1rating5.00
  12. 2026-10-09reviews1rating5.00
  13. 2026-10-10reviews1rating5.00
  14. 2026-10-13reviews1rating5.00
  15. 2026-10-18reviews1rating5.00
  16. 2026-10-19reviews1rating5.00
  17. 2026-10-21reviews1rating5.00
  18. 2026-10-22reviews1rating5.00
  19. 2026-10-24reviews1rating5.00
  20. 2026-10-25reviews1rating5.00
  21. 2026-10-28reviews1rating5.00
  22. 2026-10-29reviews1rating5.00
  23. 2026-10-30reviews1rating5.00
  24. 2026-10-31reviews1rating5.00

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.

Like this one

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

  1. Simple Calculator Describes nearly the same job, smaller audience 668 users ★ 5.0
  2. Calculator – Smart, Fast & Scientific Describes nearly the same job, smaller audience 4 users
  3. Máy Tính Mini Soft UI 🧮 Describes nearly the same job, smaller audience 2 users (last published figure)
  4. Mini Calculator (Simple) Describes nearly the same job, smaller audience 22 users
  5. Basic Calculator Describes nearly the same job, smaller audience 79 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.

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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

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-30. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built