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Sleepy Calculator

Chrome Web Store listing by Cedar Apps

A Chrome extension with 511 users, barely installed. Audience over the last 30 days: -18.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 2 screenshots

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

Users
511
Rating
3.2 (9 ratings)
Users, last 30 days
-18
Rating, last 30 days
Steady over 30 days
Version
1.0.0
Updated in the store
2013-06-02
Published
2013-03-07
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
-18 since 02.10
494-529 · 17 readings
  1. 2026-10-04505
  2. 2026-10-08503
  3. 2026-10-09500
  4. 2026-10-10514
  5. 2026-10-13507
  6. 2026-10-16495
  7. 2026-10-18498
  8. 2026-10-19494
  9. 2026-10-20496
  10. 2026-10-21498
  11. 2026-10-22499
  12. 2026-10-23501
  13. 2026-10-24508
  14. 2026-10-25511
  15. 2026-10-28506
  16. 2026-10-30511
  17. 2026-11-01511
Rating
unchanged since 02.10
reviewsrating 3.22 · 17 readings
  1. 2026-10-04reviews9rating3.22
  2. 2026-10-08reviews9rating3.22
  3. 2026-10-09reviews9rating3.22
  4. 2026-10-10reviews9rating3.22
  5. 2026-10-13reviews9rating3.22
  6. 2026-10-16reviews9rating3.22
  7. 2026-10-18reviews9rating3.22
  8. 2026-10-19reviews9rating3.22
  9. 2026-10-20reviews9rating3.22
  10. 2026-10-21reviews9rating3.22
  11. 2026-10-22reviews9rating3.22
  12. 2026-10-23reviews9rating3.22
  13. 2026-10-24reviews9rating3.22
  14. 2026-10-25reviews9rating3.22
  15. 2026-10-28reviews9rating3.22
  16. 2026-10-30reviews9rating3.22
  17. 2026-11-01reviews9rating3.22
Users
-5 since 01.09
494-541 · 31 readings
  1. 2026-09-01516
  2. 2026-09-03522
  3. 2026-09-05536
  4. 2026-09-06540
  5. 2026-09-07541
  6. 2026-09-08539
  7. 2026-09-09539
  8. 2026-09-13531
  9. 2026-09-15520
  10. 2026-09-16522
  11. 2026-09-20523
  12. 2026-09-22520
  13. 2026-09-25518
  14. 2026-09-28529
  15. 2026-10-04505
  16. 2026-10-08503
  17. 2026-10-09500
  18. 2026-10-10514
  19. 2026-10-13507
  20. 2026-10-16495
  21. 2026-10-18498
  22. 2026-10-19494
  23. 2026-10-20496
  24. 2026-10-21498
  25. 2026-10-22499
  26. 2026-10-23501
  27. 2026-10-24508
  28. 2026-10-25511
  29. 2026-10-28506
  30. 2026-10-30511
  31. 2026-11-01511
Rating
unchanged since 01.09
reviewsrating 3.22 · 31 readings
  1. 2026-09-01reviews9rating3.22
  2. 2026-09-03reviews9rating3.22
  3. 2026-09-05reviews9rating3.22
  4. 2026-09-06reviews9rating3.22
  5. 2026-09-07reviews9rating3.22
  6. 2026-09-08reviews9rating3.22
  7. 2026-09-09reviews9rating3.22
  8. 2026-09-13reviews9rating3.22
  9. 2026-09-15reviews9rating3.22
  10. 2026-09-16reviews9rating3.22
  11. 2026-09-20reviews9rating3.22
  12. 2026-09-22reviews9rating3.22
  13. 2026-09-25reviews9rating3.22
  14. 2026-09-28reviews9rating3.22
  15. 2026-10-04reviews9rating3.22
  16. 2026-10-08reviews9rating3.22
  17. 2026-10-09reviews9rating3.22
  18. 2026-10-10reviews9rating3.22
  19. 2026-10-13reviews9rating3.22
  20. 2026-10-16reviews9rating3.22
  21. 2026-10-18reviews9rating3.22
  22. 2026-10-19reviews9rating3.22
  23. 2026-10-20reviews9rating3.22
  24. 2026-10-21reviews9rating3.22
  25. 2026-10-22reviews9rating3.22
  26. 2026-10-23reviews9rating3.22
  27. 2026-10-24reviews9rating3.22
  28. 2026-10-25reviews9rating3.22
  29. 2026-10-28reviews9rating3.22
  30. 2026-10-30reviews9rating3.22
  31. 2026-11-01reviews9rating3.22

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

Cedar Apps publishes 6 listings we track, 5k users between them. Listed website: sleepy-calculator.herokuapp.com.

  1. English - French Dictionary Cedar Apps · published 2013-04-20 2k users ★ 2.8
  2. English - Korean Dictionary Cedar Apps · published 2013-06-15 1k users ★ 3.5
  3. Weather Scanner Cedar Apps · published 2013-03-29 622 users ★ 3.7
Show 2 more from this publisher
  1. Magic 8 Ball Cedar Apps · published 2012-11-25 318 users ★ 3.6
  2. English - Malay Dictionary Cedar Apps · published 2013-01-24 314 users ★ 4.5

Like this one

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

  1. Sleep Calculator Describes nearly the same job, smaller audience 6 users ★ 5.0
  2. Sleep Calculator Describes nearly the same job, smaller audience 4 users
  3. Sleep Calculator Describes nearly the same job, smaller audience 8 users
  4. Sleeper Describes nearly the same job, smaller audience 3 users
  5. Sleep Time Optimizer Describes nearly the same job, smaller audience 5 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